During a Nuclear Fusion Reaction, It Is Possible to Produces

During a nuclear fusion reaction, it is possible to produces neutrons with 14.1 MeV (mega-electron volts) . This results in neutrons with a speed approaching 52,000 km/s. At this speed what is the mass of a neutron. The rest mass of a neutron is 1.675 × 10^-24 g.

A) 1.68 × 10^-24 g
B) 1.70 × 10^-24 g
C) 3.22 × 10^-32 g
D) 8.71 × 10^-20 g
E) 8.71 × 10^-17 g