Meaning: 'Which' is used to refer to a specific thing or group previously mentioned, in this case, 'these early cartoons.'

Wrong options:

• when: The word 'when' is an adverb that indicates time, which does not fit the grammatical structure needed to introduce a clause about the cartoons.
• what: The word 'what' is an interrogative pronoun that does not serve to introduce a relative clause, making it inappropriate here.
• over: The word 'over' is a preposition that does not fit grammatically as it does not introduce a clause.
• there: The word 'there' is an adverb indicating place, which does not relate to the clause structure needed here.
• little: The word 'little' is an adjective that does not function as a pronoun or relative pronoun, making it unsuitable for this context.
• whose: The word 'whose' is a possessive pronoun that does not correctly introduce a clause about the cartoons themselves.

Correct answer: what

Explanation: The word 'what' serves as a pronoun introducing a noun clause that acts as the subject of the sentence. It fits grammatically and contextually, as it refers to the interesting aspect of the art form.

Meaning: 'What' is used to refer to something specific, in this case, the aspect that makes the art form interesting.

Wrong options:

• which: The word 'which' is a relative pronoun that does not fit here as it cannot introduce a noun clause that serves as the subject of the sentence.
• when: The word 'when' is an adverb indicating time, which does not fit the context of discussing what makes the art form interesting.
• over: The word 'over' is a preposition that does not serve as a subject or pronoun, making it inappropriate here.
• there: The word 'there' is an adverb indicating place, which does not relate to the subject of the sentence.
• little: The word 'little' is an adjective that does not function as a pronoun or subject, making it unsuitable for this context.
• whose: The word 'whose' is a possessive pronoun that does not introduce a noun clause and is not appropriate in this context.

Correct answer: little

Explanation: The word 'little' is an adjective that describes the size of the pictures, fitting grammatically and contextually as it modifies the noun 'pictures.'

Meaning: 'Little' refers to something small in size, in this case, the pictures being described.

Wrong options:

• which: The word 'which' is a relative pronoun that does not describe size and does not fit grammatically in this context.
• when: The word 'when' is an adverb indicating time, which does not relate to the size of the pictures.
• what: The word 'what' is an interrogative pronoun that does not describe size and is not appropriate here.
• over: The word 'over' is a preposition that does not function as an adjective and does not fit the context of describing size.
• there: The word 'there' is an adverb indicating place, which does not relate to the description of the pictures' size.
• whose: The word 'whose' is a possessive pronoun that does not describe size and is not suitable in this context.

Correct answer: whose

Explanation: The word 'whose' is a possessive pronoun that introduces a relative clause providing information about 'the artists.' It correctly links the clause to the noun it modifies, maintaining grammatical coherence and context.

Meaning: 'Whose' indicates possession, referring to the skills belonging to the artists.

Wrong options:

• which: The word 'which' is a relative pronoun that does not indicate possession and is not suitable for this context.
• when: The word 'when' is an adverb indicating time, which does not fit the grammatical structure needed to introduce a clause about the artists.
• what: The word 'what' is an interrogative pronoun that does not serve to introduce a relative clause, making it inappropriate here.
• over: The word 'over' is a preposition that does not fit grammatically as it does not introduce a clause.
• there: The word 'there' is an adverb indicating place, which does not relate to the clause structure needed here.
• little: The word 'little' is an adjective that does not function as a pronoun or relative pronoun, making it unsuitable for this context.

Correct answer: case

Explanation: The word 'case' is a noun that fits grammatically and contextually, as it refers to a specific instance or example being discussed in the sentence.

Meaning: 'Case' refers to a particular situation or example, in this context, the example of the four-volume work.

Wrong options:

• which: The word 'which' is a relative pronoun that does not fit as it cannot serve as a noun in this context.
• when: The word 'when' is an adverb indicating time, which does not fit the context of discussing a specific example.
• what: The word 'what' is an interrogative pronoun that does not serve as a noun and is not appropriate here.
• over: The word 'over' is a preposition that does not function as a noun and does not fit the context of describing a situation.
• there: The word 'there' is an adverb indicating place, which does not relate to the description of a specific case.
• little: The word 'little' is an adjective that does not function as a noun and is not suitable in this context.