Select the grammatically correct sentence from the given options.
Show answer & explanation
Correct answer: D
Explanation
Correct Answer: Option 4 i.e. An unexpected power failure completely foiled the plan of the team.
Error Concept: Misuse of articles before nouns starting with vowel/consonant sounds and awkward phrasing.
What is wrong:
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Option 1: a plan of a team is grammatically correct but clumsy and unnatural.
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Option 2: A unexpected is wrong because 'unexpected' starts with a vowel sound; it should be An unexpected.
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Option 3: an plan is wrong because 'plan' begins with a consonant sound; it should be a plan.
Grammatical Concept:
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Use an before words beginning with a vowel sound.
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Use a before words beginning with a consonant sound.
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The definite article the is used for something specific and already known (here, the plan of the team).
Incorrectness of the concept in context: Options 1, 2, and 3 violate article usage or idiomatic correctness, while option 4 follows the rules properly.
How to correct: Ensure correct article usage and idiomatic phrasing.
Correct Phrase/Correction: An unexpected power failure completely foiled the plan of the team.
Final Sentence: An unexpected power failure completely foiled the plan of the team.
Hence, the chosen option (4) is correct.