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
- $\frac{x^{2}+15 x+51}{x+6}$

A) $x+10$
B) $x+9-\frac{3}{x+6}$
C) $x+9+\frac{3}{x+6}$
D) $\frac{x+9}{x+6}$