$$\frac{\sin 210^{\circ} . \cos 585^{\circ}}{\cosec 750^{\circ}}$$

A

$$-\frac{(2 + \sqrt{2})}{4\sqrt{2}}$$

B

$$\frac{1}{4\sqrt{2}}$$

C

$$\frac{(2 \sqrt{2})}{\sqrt{2} + 2}$$

D

$$-\frac{(2 - \sqrt{2})}{4\sqrt{2}}$$