An Electron Is Travelling in the Positive X Direction

Multiple Choice

An electron is travelling in the positive x direction.A uniform electric field is in the negative y direction.If a uniform magnetic field with the appropriate magnitude and direction also exists in the region, the total force on the electron will be zero.The appropriate direction for the magnetic field is:

A) the positive y direction
B) the negative y direction
C) into the page
D) out of the page
E) the negative x direction