it is really very confusing question. but now i got it.

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2's complement representation is not same as 2's complement of a number. In 2's complement representation positive integers are represented in its normal binary form while negative numbers are represented in its 2's complement form. So (c) is correct here.

http://www.ele.uri.edu/courses/ele447/proj_pages/divid/twos.html

http://www.ele.uri.edu/courses/ele447/proj_pages/divid/twos.html

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