Ans: C
The base area of the right prism
The base area of the right prism
$\begin{array}{cl}
= & \dfrac{1}{2} \times (5 + 11) \times 8 \\
= & 64 \text{ cm}^2
\end{array}$
The volume of the right prism
$\begin{array}{cl}
= & 64 \times 6 \\
= & 384 \text{ cm}^3
\end{array}$
