Meaning: 'Varies' means to change or differ, indicating that access to university is not the same for everyone and depends on factors like parental income.

Wrong options:

• marks: 'Marks' refers to scores or grades and does not fit grammatically as it does not convey the intended meaning of change in access.
• moves: 'Moves' implies a physical action or change in position, which does not apply to the context of access to university.
• mapped: 'Mapped' suggests a visual representation or plan, which is not relevant to the discussion of access variability.

Correct answer: far

Explanation: The word 'far' appropriately indicates a significant degree of limitation, fitting grammatically as it modifies the adjective 'limited' to express extent, aligning well with the context of data availability.

Meaning: 'Far' in this context means to a great extent, emphasizing that the understanding of graduates' earnings is significantly limited due to data issues.

Wrong options:

• so: 'So' typically indicates a consequence or degree but does not fit grammatically as it does not modify 'limited' correctly in this context.
• much: 'Much' is used with uncountable nouns and does not fit here as it does not convey the intended meaning of extent in relation to 'limited'.
• many: 'Many' is used with countable nouns and does not apply here, as 'limited' is not a countable concept.

Correct answer: better

Explanation: The adjective 'better' correctly describes the quality of information needed, fitting grammatically as it compares the quality of information to what is currently available, which is relevant to the context of improving understanding of earnings variation.

Meaning: 'Better' means of higher quality or more effective, indicating that improved information is necessary for understanding variations in graduates' earnings.

Wrong options:

• great: 'Great' implies a large amount or degree but does not convey the comparative quality needed in this context.
• best: 'Best' indicates the highest quality but does not fit grammatically as it does not align with the comparative context of needing improved information.
• greater: 'Greater' suggests a larger quantity or degree but does not fit the context of quality improvement required for information.

Correct answer: help

Explanation: The verb 'help' appropriately indicates assistance, fitting grammatically as it aligns with the subject 'schools' and complements the action of advising and guiding students, which is contextually relevant.

Meaning: 'Help' means to assist or aid, indicating that schools need to provide support to students in their decision-making processes.

Wrong options:

• make: 'Make' implies creating or causing something, which does not fit the context of providing assistance in advising students.
• borrow: 'Borrow' suggests taking something temporarily, which is irrelevant to the context of advising and guiding students.
• guide: 'Guide' alone does not convey the same sense of assistance as 'help' does in this context, making it less suitable.

Correct answer: system

Explanation: The noun 'system' correctly refers to the organized structure of higher education finance, fitting grammatically as it serves as the object of the sentence and aligns with the context of discussing operational aspects.

Meaning: 'System' refers to a set of connected things or parts forming a complex whole, in this case, the structure of higher education finance.

Wrong options:

• class: 'Class' refers to a group or category and does not fit the context of discussing the organization of finance in higher education.
• preamble: 'Preamble' refers to an introductory statement and is irrelevant to the context of discussing a financial structure.
• way: 'Way' suggests a method or manner but lacks the specificity needed to describe the organized structure of higher education finance.