apply properties of operations to multiply 5a^2b^5 c^3 times -4a^7 c^5

A. 20a^14b^5 c^15
B.-20a^14b^5 c^15
C. 20a^9b^5 c^8
D.-20a^9b^5 c^8

B. -20a^9b^5 c^8