A +40- $\pm$ C Charge Is Placed on the X Axis at X

Multiple Choice

A +4.0- $\pm$ C charge is placed on the x axis at x = +3.0 m,and a -2.0- $\pm$ C charge is located on the y axis at y = -1.0 m.Point A is on the y axis at y = +4.0 m.Determine the electric potential at point A (relative to zero at the origin) .

A) 6.0 kV
B) 8.4 kV
C) 9.6 kV
D) 4.8 kV
E) 3.6 kV