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    Question

    It has been ____________, for example, that a general

    spiral pattern will result simply from the fact that the galaxy has differential rotation; i.e., the rotation speed is different at different distances from the galactic centre.
    A Remonstrated Correct Answer Incorrect Answer
    B Demonstrated Correct Answer Incorrect Answer
    C Reprimanded Correct Answer Incorrect Answer
    D Fatuous Correct Answer Incorrect Answer
    E None of the above Correct Answer Incorrect Answer

    Solution

    In the sentence something has been done to prove a certain point, hence, for that most probably an experiment might have been conducted. Hence, ‘demonstrated’ is correct as it means ‘to present something’ using practical methods.

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