What number should be subtracted from
$$4(\sin^4 60^\circ + \cos^4 30^\circ) - (\tan^2 45^\circ - \cot^2 30^\circ) + \cos^2 45^\circ - \cosec^2 45^\circ + \sec^2 60^\circ$$ to get 2?

A

5

B

4

C

7

D

3