Two Particles a and B Have Identical Charge Q

Two particles A and B have identical charge Q. For a net force of zero to be exerted on a third chargeparticle it must be placed:

A) midway between A and B
B) on the perpendicular bisector of the line joining A and B but away from the line
C) on the line joining A and B, not between the particles
D) on the line joining A and B, closer to one of them than the other
E) at none of these places (there is no place)