In a $$\triangle PQR, \angle P=90^{\circ}, \angle R=47^{\circ}$$ and $$PS \perp QR$$. Find the value of $$\angle QPS$$.

A

$$43^{\circ}$$

B

$$47^{\circ}$$

C

$$45^{\circ}$$

D

$$40^{\circ}$$