The following expression is equal to.
$$\cot 85^\circ + \cos 75^\circ$$

A

$$\tan 85^\circ + \sin 75^\circ$$

B

$$\tan 5^\circ + \sin 15^\circ$$

C

$$\tan 85^\circ - \sin 75^\circ$$

D

$$\tan 5^\circ - \sin 15^\circ$$