What is the simplest form of this expression?


(x − 3)(x2 + 4x + 5)


A.

x3 + 7x2 + 7x + 15

B.

x3 + x2 + 17x + 15

C.

x3 + x2 − 7x – 15

D.

x3 − 7x2 − 17x − 15