If a square matrices $A$ and $B$ are such that $AA^{\theta}=A^{\theta}A$, $BB^{\theta}=B^{\theta}B$, $AB^{\theta}=B^{\theta}A$ then $AB(AB)^{\theta}$ is equal to

Question

$\begin{array}{1 1}(a)\;B^{\theta}A^{\theta}AB&(b)\;BA^{\theta}AB\\(c)\;BA^{\theta}A^{\theta}B&(d)\;None\;of\;these\end{array}$