choice C
lets do the negation of the choice c and conclusion falls apart-
(C) At least one of the eminent scientists trained by J.J. Thomson was not a creative researcher before coming to study with him
at least one ( means 1 to 100) or some on a scale of 0 to 100
negation of atleast one is - none or no one
so negation of choice c becomes
None of the eminent scientists trained by J.J. Thomson was not a creative researcher before coming to study with him- double negative, so in affirmative
...
lets do the negation of the choice c and conclusion falls apart-
(C) At least one of the eminent scientists trained by J.J. Thomson was not a creative researcher before coming to study with him
at least one ( means 1 to 100) or some on a scale of 0 to 100
negation of atleast one is - none or no one
so negation of choice c becomes
None of the eminent scientists trained by J.J. Thomson was not a creative researcher before coming to study with him- double negative, so in affirmative
...
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