ACT English Practice Question #1165 (Hard (36)) | Test Citadel
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ACT English Difficulty: Hard (36)

Digital ACT English Practice Question #1165

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

Astronomer Maria Mitchell, who discovered Comet 1847 VI using a two-inch reflecting **telescope, was awarded a gold medal** by the King of Denmark for her breakthrough. Which of the following choices represents the most grammatically correct punctuation for the bolded phrase?
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Socratic AI Engine Step-by-Step Derivation
0ms Precomputed
Tactical Insight (Hint 1)

Locate the non-essential clause starting with 'who discovered...'. It must begin and end with matching commas.

Elimination Framework (Hint 2)

Elimination Strategy: Option B uses a semicolon which creates an incomplete clause. Option C omits the necessary comma after telescope. Option D adds an erroneous comma after medal.

Masterclass Solution & Distractor Trap Analysis

The relative clause 'who discovered Comet 1847 VI using a two-inch reflecting telescope' is a non-restrictive clause set off by commas. The opening comma is after 'Maria Mitchell,', so the closing comma must appear after 'telescope,'. The m...

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

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