Answer:
B I hope I'm right sorry if I'm wrong
Just select the fraction text and choose Open Type > Fractions from the Character panel menu.
Answer:
-19/32
Explanation:
(If I assume d to be x)
4x+3/8=-2
or,4x=-2-3/8=-19/8
or,x=(-19/8)*(1/4)=-19/32
B is better than any other one's I think.