Question

    Select the most appropriate meaning of the bold idiom

    in the given sentence. This problem is a hard nut to crack ,it will take longer than they imagined.
    A involves breaking nuts Correct Answer Incorrect Answer
    B is not interesting enough Correct Answer Incorrect Answer
    C is difficult to solve Correct Answer Incorrect Answer
    D needs a lot of work Correct Answer Incorrect Answer

    Solution

    The correct answer is C

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