The value of $$\frac{\sin^{2}30^\circ + \cos^{2} 60^\circ + \sec 45^\circ . \sin 45^\circ}{\sec 60^\circ + \cosec 30^\circ}$$

A

$$ \frac{1}{4}$$

B

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

C

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

D

$$-\frac{1}{4}$$