Charge of Uniform Density (0

Charge of uniform density (0.30 nC/m²) is distributed over the xy plane,and charge of uniform density (-0.40 nC/m²) is distributed over the yz plane.What is the magnitude of the resulting electric field at any point not in either of the two charged planes?

A) 40 N/C
B) 34 N/C
C) 28 N/C
D) 46 N/C
E) 6.0 N/C