Subtract the rational expressions and simplify.

Subtract the rational expressions and simplify.

Subtract the rational expressions and simplify.

fraction numerator a over denominator a minus 4 end fraction minus fraction numerator 3 over denominator 4 minus a end fraction

A. fraction numerator 3 minus a over denominator 4 minus a end fraction

B. fraction numerator minus a minus 3 over denominator 4 minus a end fraction

C. fraction numerator a minus 3 over denominator a minus 4 end fraction

D. fraction numerator minus a plus 3 over denominator 4 minus a end fraction