If $y=3 x^{2}+6 x$ And $\frac{d x}{d t}=5$ , Find $\frac{d y}{d t}$

Multiple Choice

If $y=3 x^{2}+6 x$ and $\frac{d x}{d t}=5$ , find $\frac{d y}{d t}$ when $x=2$ .

A) 60
B) $210$
C) 300
D) 260
E) None of these