Subtract
- $\left(9 x^{5}-6 x^{3}-20\right)-\left(12 x^{3}+3 x^{5}+17\right)$ A) $6 x^{5}-3 x^{3}-3$ B) $6 x^{5}-18 x^{3}-37$

Multiple Choice

Subtract.
- $\left(9 x^{5}-6 x^{3}-20\right) -\left(12 x^{3}+3 x^{5}+17\right)$

A) $6 x^{5}-3 x^{3}-3$
B) $6 x^{5}-18 x^{3}-37$
C) $-49 x^{8}$
D) $6 x^{5}-18 x^{3}-3$