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    Question

    Below is given a sentence with an emboldened part. The

    part may or may not be grammatically correct. The question is followed by three alternatives that might improve the sentence. Choose the correct combination of alternatives. Despite facing numerous obstacles, the scientist managed to break through the barriers of conventional thinking and make a groundbreaking discovery.       i.        Break up     ii.        Break in    iii.        Break down
    A Only i Correct Answer Incorrect Answer
    B Only i and ii Correct Answer Incorrect Answer
    C Only iii Correct Answer Incorrect Answer
    D Only ii Correct Answer Incorrect Answer
    E None of the above Correct Answer Incorrect Answer

    Solution

    In this context, "break through" means to overcome obstacles or barriers, often in a figurative sense. The scientist managed to overcome challenges and make a significant discovery by pushing the boundaries of conventional thinking.

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