Meaning: 'Component' means a part or element of a larger whole, indicating that sociology of the family is an essential part of academic studies.

Wrong options:

• eminent: Eminent means famous or respected within a particular sphere, which does not fit the context of being a part of curricula.
• opponent: Opponent refers to someone who opposes something, which is irrelevant in this context as it does not relate to academic curricula.
• continent: Continent refers to a large landmass, which is unrelated to the context of sociology or academic components.

Correct answer: illustrative

Explanation: The word 'illustrative' serves as an adjective that describes something that provides an example or explanation, fitting well in the context of the sentence where the sociology of the family is being described as an example of social relations.

Meaning: 'Illustrative' means serving as an example or explanation, indicating that the topic helps clarify the concept of social relations.

Wrong options:

• ineffective: Ineffective means not producing the desired effect, which contradicts the idea of providing a good example.
• introspective: Introspective refers to self-examination, which does not relate to the context of providing an example of social relations.
• inoperative: Inoperative means not functioning or having no effect, which does not fit the context of being a good example.

Correct answer: disposal

Explanation: The word 'disposal' fits grammatically as a noun indicating the act of getting rid of or the state of being available for use. In this context, it refers to the resources available to sociologists for their research.

Meaning: 'Disposal' means the act of getting rid of something or the state of being available for use, indicating that sociologists have family culture at their disposal for research.

Wrong options:

• proposal: Proposal refers to a plan or suggestion, which does not fit the context of having something available for use.
• rehearsal: Rehearsal means practicing something, which is irrelevant in the context of research tools.
• refusal: Refusal means the act of saying no, which does not relate to the availability of research tools.

Correct answer: complexities

Explanation: The word 'complexities' fits grammatically as a noun that refers to the state of being complex or complicated. It aligns with the context of sociology, which often deals with intricate social structures and relationships.

Meaning: 'Complexities' means the state of being complex, indicating that the field of sociology involves many intricate factors and relationships.

Wrong options:

• refusal: Refusal does not relate to the context of sociology and its structures.
• frailties: Frailties refer to weaknesses, which do not accurately describe the various factors in sociology.
• amenities: Amenities refer to desirable or useful features, which do not fit the context of discussing the field's intricacies.