答案：D
所求的本利和
所求的本利和
$\begin{array}{cl}
= & \$30\ 000 \times \left(1 + \dfrac{12\%}{12}\right)^{4\times12} \\
= & \$48\ 366.782\ 33 \\
\approx & \$ 48\ 367
\end{array}$
