\text { Evaluate the integral. } \int-3,2^{2} \sqrt{x^{3}-4} d x \begin{aligned}a) & -\frac{\sqrt{x^{3}-4}}{3}+c \\ & b)-\frac{2\left(x^{3}-4\right)^{3 / 2}}{3}+c \\ & c)-\frac{3\left(x^{3}-4\right)^{5 / 2}}{4}+c\end{aligned}