Two identical thin wires are oriented along the x and y axes.

Question

With current on x plane going North. Current on y plane going West.Both carry the same current I, and there is no electrical contact between the wires. The points A, B, C, D are each equidistant from both wires.
A: top left
B:top right
C: bottom left
D: bottom right.
the net magnetic field at each point are?