Question

simplify the sum.

d^2-7d+12/ d^2-d-6 + d^2+5d+6/ d^2-2d-15

a) 2d^2-5d+24/(d+2)(d-5)
b) 2d^2-13d+24/(d+2)(d-5)
c) 2d^2+13d+24/(d+2)(d-5)
d) 2d^2+5d+24/(d+2)(d-5)