Correct option is B
The correct meaning is
(b) They have accurately identified or explained something.
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Explanation:
· "Hit the nail on the head" means to say or do something exactly right (Hindi: बिल्कुल सही कहना या करना).
· Example: His answer about climate change hit the nail on the head during the debate.
Other Related Idioms:
1.
Get to the heart of the matter
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Meaning: To address the central or most important aspect of a problem. (मुद्दे की जड़ तक पहुँचना)
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Example: During the meeting, he got to the heart of the matter and proposed a solution.
2.
Right on the money
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Meaning: To be completely accurate or correct. (बिल्कुल सही होना)
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Example: Your suggestion about improving communication was right on the money.
3.
Put your finger on it
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Meaning: To identify exactly what is wrong or needed. (समस्या की सही पहचान करना)
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Example: I know something feels off, but I can’t quite put my finger on it.