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. The restriction on $n, p, k$ so that $PY + WY$ will be defined are:

Question

$$\begin{array}{1 1} (A) \quad k = 3, p = n & (B) \quad k \text{ is arbitrary}, p = 2 \\ (C) \quad p \text{ is arbitrary}, k = 3 & (D) \quad k = 2, p = 3 \end{array}$$