If $$\cot (P + Q) = 0$$ and $$\tan (P - Q) = \frac{1}{\surd{3}}$$, then what is the value of $$\angle P$$ and $$\angle Q$$? (0 degree $$< P, Q \leq 90$$ degree)

A

25 degree, 65 degree

B

45 degree, 45 degree

C

60 degree, 30 degree

D

15 degree, 75 degree