$\cos 2\theta\cos 2\phi+\sin^2(\theta-\phi)-\sin^2(\theta+\phi)$ is equal to

Question

$\begin{array}{1 1}(A)\;\sin 2(\theta+\phi)&(B)\;\cos 2(\theta+\phi)\\(C)\;\sin 2(\theta-\phi)&(D)\;\cos 2(\theta-\phi)\end{array}$