Two Long Parallel Wires Carry Currents of 20 a and 5.0

Multiple Choice

Two long parallel wires carry currents of 20 A and 5.0 A in opposite directions. The wires are separated by 0.20 m. At what point between the two wires are the contributions from the two wires the same?

A) 0.040 m from the 20 A wire
B) 0.080 m from the 20 A wire
C) 0.12 m from the 20 A wire
D) 0.16 m from the 20 A wire
E) 0.18 m from the 20 A wire