what is the simpler form of the expression?
(5d+2)(3d^2+8d-3)

A. 15d^3 + 46d^2 + 1d - 6
B. 15d^3 + 34d^2 - 1d - 6
C. 15d^3 - 34d^2 + 1d - 5
D. 15d^3 + 34d^2 - 1d -5