Collect Like Terms and Then Arrange in Descending Order $-4 x^{6}+3 x^{8}+7 x^{7}+7 x^{6}+6 x^{7}+5 x^{8}$

Multiple Choice

Collect like terms and then arrange in descending order.
- $-4 x^{6}+3 x^{8}+7 x^{7}+7 x^{6}+6 x^{7}+5 x^{8}$

A) $8 x^{16}+13 x^{14}+3 x^{12}$
B) $8 x^{8}+13 x^{7}+3 x^{6}$
C) $24 x^{42}$
D) $-3 x^{8}-3 x^{7}+5 x^{6}$