If $$4 (\cosec^2 57^\circ - \tan^2 33^\circ ) - \cos 90^\circ - y \tan^2 66^\circ \tan^2 24^\circ = \frac{y}{2}$$, the value of y is:

A

$$\frac{8}{3}$$

B

$$\frac{3}{8}$$

C

$$8$$

D

$$\frac{1}{3}$$