An Electron Has a Momentum of 0 $0.86 \mathrm { MeV } / \mathrm { c }$

An electron has a momentum of 0.86 MeV/c. The momentum in SI units is

A) $0.86 \mathrm { MeV } / \mathrm { c }$
B) $4.6 \times 10 ^ { - 22 } \mathrm {~kg} \cdot \mathrm { m } / \mathrm { s }$
C) $2.5 \times 10 ^ { - 22 } \mathrm {~kg} \cdot \mathrm { m } / \mathrm { s }$
D) $1.2 \times 10 ^ { - 22 } \mathrm {~kg} \cdot \mathrm { m } / \mathrm { s }$