Choose the One Alternative That Best Completes the Statement or Answers

Multiple Choice

Choose the one alternative that best completes the statement or answers the question.
Divide
- $\frac{18 x^{8}+21 x^{6}+24 x^{4}}{3 x^{6}}$

A) $6 x+7+\frac{8}{x}$
B) $6 x+7+\frac{8}{x^{2}}$
C) $6 x^{2}+7+\frac{8}{x^{2}}$
D) $6 x^{2}+7+\frac{8}{x}$