Let \(A=\left[a_{ij}\right]_{m \times n}\) and \(B=\left[b_{ij}\right]_{p\times q}\) be two matrices such that \(AB \) is defined. Then

\(n=p\) $n<p$ \(n>p\) \(m=q\)

\(n=p\)

Recall when two matrices can be multiplied.