ACT English Practice Question #1615 (Hard (540)) | Test Citadel
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ACT English Difficulty: Hard (540)

Digital ACT English Practice Question #1615

Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.

Choose the best option for the underlined portion: The three biologists discovery altered conventional models of deep-sea hydrothermal symbiosis.
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Plural noun ending in 's' + ownership = apostrophe after the s (biologists').

Masterclass Solution & Distractor Trap Analysis

The discovery belongs to 'three biologists' (plural). To make a regular plural noun possessive, add an apostrophe after the 's' (biologists'). Option C is correct....

Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...

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