If the plates are 1.0 cm by 1.0 cm squares, and the charges on the plates are +/- 2.2 μC respectively, what is the magnitude of the electric field at point B?
A. 0 N/C
B. 2.2 × 10^6 N/C
C. 4.4 × 10^6 N/C
D. 8.8 × 10^6 N/C