Linear Algebra

If $A$ and $B$ are square matrices of the same order, which of the following is NOT generally valid?

Options:

• (A) $AB = BA$
• (B) $(AB)^T = B^T A^T$
• (C) $\det(AB) = \det(A)\det(B)$
• (D) $(AB)^{-1} = B^{-1} A^{-1}$