Physics magnetism?

What value of magnetic field would make a beam of electrons, traveling West at a speed of 2.0×106 m/s, go undeflected through a region where there is a uniform electric field of 7.0×104 V/m pointing North? (I got 0.035T which is the right answer but i cant seem to get the next part of the question below) What is... show more What value of magnetic field would make a beam of electrons, traveling West at a speed of 2.0×106 m/s, go undeflected through a region where there is a uniform electric field of 7.0×104 V/m pointing North? (I got 0.035T which is the right answer but i cant seem to get the next part of the question below)

What is the direction of the magnetic field assuming it is not pointing East?

North
Into the Page
Out of the page
West
South