At Some Moment, an Electron $q = - 1.6 \times 10 ^ { - 19 }$

Multiple Choice

At some moment, an electron ( $q = - 1.6 \times 10 ^ { - 19 }$ C) moves with a velocity of 1 m/s parallel to a 1-T magnetic field. The force acting on the electron is

A) $0$ N.
B) $1.6 \times 10 ^ { - 19 }$ N.
C) $1.0$ N.
D) $1.0 \times 10 ^ { - 9 }$ N.