Mark against the correct answer in each of the following:

Mark $(\sqrt{)}$ against the correct answer in each of the following:

$\int(2 \mathrm{x}+3)^{5} \mathrm{dx}=?$

A. $\frac{(2 x+3)^{6}}{6}+C$

B. $\frac{(2 x+3)^{4}}{8}+C$

C. $\frac{(2 x+3)^{6}}{12}+C$

D. none of these