计算下列行列式的值或矩阵的逆矩阵
(1) $\left|\begin{array}{rrrr}2 & 1 & 4 & 1 \\ 3 & -1 & 2 & 0 \\ 1 & 2 & 0 & 0 \\ 5 & 0 & 0 & 0\end{array}\right|$
(2) $\left(\begin{array}{lll}0 & 2 & 0 \\ 0 & 0 & 3 \\ 4 & 0 & 0\end{array}\right)$.
$\text{A.}$
$\text{B.}$
$\text{C.}$
$\text{D.}$