If the number of uranium nuclei required per hour to produce a power of 64 kW is $7.2 \times 10^{18}$, then the energy released per fission is

• A

  $0.64 \times 10^{-10} \mathrm{~J}$
• B

  $3.2 \times 10^{-13} \mathrm{~J}$
• Correct answer
  C

  $0.32 \times 10^{-10} \mathrm{~J}$
• D

  $3.2 \times 10^{-10} \mathrm{~J}$

Hence, the correct answer is option: 'C'.