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Set 5: Form, Structure & Sense (Intermediate)

Explanation

Answer: D

PASSAGE

Researchers have observed that the algorithm, designed to identify patterns in large _______ has applications in fields ranging from medicine to finance.

Which choice completes the text so that it conforms to the conventions of Standard English?

A. datasets
B. datasets;
C. datasets:
D. datasets,✓ Correct

Detailed Answer Explanation

[Variation 3] This question tests your understanding of sentence function and text organization. The phrase 'designed to identify patterns in large datasets' is parenthetical. A comma closes this phrase before the main verb 'has.' Each sentence in a well-constructed text serves a specific purpose. Consider what role this sentence plays in the argument: does it introduce, support, contrast, or conclude an idea? Understanding why an author includes specific sentences helps you grasp the overall argument. Each sentence should serve a clear purpose: introducing ideas, providing evidence, acknowledging counterarguments, or drawing conclusions. Identify the role to understand the structure.

Key Evidence:

• "The algorithm, designed to identify patterns"

• "has applications in fields"

Why others are wrong: A (Missing punctuation fails to close the parenthetical phrase.), B (A semicolon is too strong for closing a parenthetical phrase.), C (A colon doesn't fit for closing a parenthetical phrase.).

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