Three Charges Are Placed as Follows Along the X- and Y-Axes

Multiple Choice

Three charges are placed as follows along the x- and y-axes of an xy-coordinate system: q₁ = 2.00 μC at x₁ = 0 m, q₂ = 4.00 μC at x₂ = 3.00 m, and q₃ = 6.00 μC at y = 4.00 m. What is the electric potential energy of this system of charges?

A) -94.2 mJ
B) 94.2 mJ
C) 0 J
D) -90.0 mJ
E) 90.0 mJ