Four Point Charges of Varying Magnitude and Sign Are Arranged $d$

Four point charges of varying magnitude and sign are arranged on the corners of the square of side $d$ as shown in the figure. Which one of the arrows shown represents the net force acting on the point charge with a charge $+ Q$ ?

A) $A$
B) $\mathrm { B }$
C) $\mathrm { C }$
D) D