Positive Charge +Q Is Uniformly Distributed on the Upper Half $\uparrow$

Multiple Choice

Positive charge +Q is uniformly distributed on the upper half of a semicircular rod and negative charge -Q is uniformly distributed on the lower half.What is the direction of the electric field at point P, the center of the semicircle?

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