The Diagram Shows Two Identical Particles, Each with Positive Charge $\uparrow$

Multiple Choice

The diagram shows two identical particles, each with positive charge Q.The electric field at point P on the perpendicular bisector of the line joining them is:

A) " $\uparrow$ "
B) " $\downarrow$ "
C) " $\rightarrow$ "
D) " $\leftarrow$ "
E) "zero"