When 235U Undergoes Fission, the Average Energy Per Fission Event $200 \mathrm { MeV }$

When 235U undergoes fission, the average energy per fission event is $200 \mathrm { MeV }$ . How much energy is released in the total fission of $2.0 \mathrm {~g}$ of $235 \mathrm { U }$ ? $\left( 1 \mathrm { eV } = 1.60 \times 10 ^ { - 19 } \mathrm {~J} , m _ { \text {neutron } } \approx m _ { \text {proton } } = 1.67 \times \right.$ 10-27 kg)

A) $3.9 \times 10 ^ { 10 } \mathrm {~J}$
B) $1.6 \times 10 ^ { 11 } \mathrm {~J}$
C) $1.6 \times 10 ^ { 5 } \mathrm {~J}$
D) $3.9 \times 10 ^ { 13 } \mathrm {~J}$