Assume $X, Y, Z, W$ and $P$ are matrices of order $2\times n$, $3\times k$, $2\times p$, $n\times 3$ and $p\times k$, respectively. If $n = p$ then the order of the matrix $7X - 5Z$ is:

Question

$$(A) \quad p \times 2 \qquad \qquad (B) \quad 2 \times n \qquad \qquad (C) \quad n \times 3 \qquad \qquad (D) \quad p \times n$$