To generate power of $3.2\; MW$, the number of fissions $U^{235}$ per minute is : (Energy released per fission = $200\; MeV, \; 1eV =1.6 \times 10^{-19} J $)

Question

( A ) $6 \times 10^{17}$
( B ) $6 \times 10^{16}$
( C ) $10^{17}$
( D ) $6 \times 10^{18}$