English Language · English
Identify the segment of the sentence that contains a grammatical error: At least two trays of COVID-19 vaccine doses delivered in California (A)/ needed to be replaced after their storage temperatures dipped below minus 80 Celsius. Officials are investigating (B)/ whether storing the vaccines at excessively colder temperatures poses a safety or efficacy risk. (C)/ There are currently more than 50 COVID-19 vaccine candidates in trials. (D)
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1D
- 2C✓
- 3B
- 4A
Correct answer
C
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