Evaluate the Indefinite Integral $\int \frac{6+6 x}{\sqrt{7+6 x+3 x^{2}}} d x$

Multiple Choice

Evaluate the indefinite integral. $\int \frac{6+6 x}{\sqrt{7+6 x+3 x^{2}}} d x$

A) $-\sqrt{7+6 x+3 x^{2}}+C$
B) $-2 \sqrt{7+4 x+5 x^{2}}+C$
C) $2 \sqrt{7+6 x+3 x^{2}}+C$
D) $-5 \sqrt{7+6 x+3 x^{2}}+C$
E) $\sqrt{7+6 x+3 x^{2}}+C$