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    Question

    There is a long list of terror attacks in who the

    security establishment failed to carry out a scientific probe. In each question below, a sentence is given with a part of it printed in bold type. That part may contain a grammatical error. Each sentence is followed by phrases 1, 2, and 3. Find out which phrase should replace the phrase given in bold to correct the error, if there is any, and to make the sentence grammatically meaningful and correct. If the sentence is correct as it is and ‘ No correction is required’ , mark 4 as the answer.
    A in who the security Correct Answer Incorrect Answer
    B in which the security Correct Answer Incorrect Answer
    C in who the securities Correct Answer Incorrect Answer
    D No correction required Correct Answer Incorrect Answer

    Solution

    ‘who’ is used for living beings and ‘which’ is used for non living things.

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