An electron enters a region where magnetic field (B) and

An electron enters a region where magnetic field (B) and electric field (E) are mutually perpendicular, then

1. it will always move in the direction of B
2. it will always move in the direction of E
3. it always possesses circular motion
4. it can go undeflected also

When the deflection produced by electric field is equal to the deflection produced by magnetic field, then the electron can go undeflected.