The energy liberated per nuclear fission is 200 MeV. If $$10^{20}$$ fissions occur per second the amount of power produced will be

A

$$2 \times 10^{22} W$$

B

$$32 \times 10^{8} W$$

C

$$16 \times 10^{8} W$$

D

$$5 \times 10^{11} W$$