An electron in hydrogen atom jumps from a level $$n = 4$$ to $$n = 1$$. The momentum of the recoiled atom is

A

$$6.8\times 10^{-27}$$ kg-m/s

B

$$12.75\times 10^{-19}$$ kg-m/s

C

$$13.6\times 10^{-19}$$ kg-m/s

D

zero