Two Parallel Metal Plates 0

Two parallel metal plates 0.35 cm apart have a potential difference between them of 175 V. The electric force on a positive charge of 6.4 × 10^-19 C at a point midway between the plates is approximately

A) 4.8 × 10^-18 N.
B) 2.4 × 10^-17 N.
C) 1.6 × 10^-18 N.
D) 4.8 × 10^-16 N.
E) 3.2 × 10^-14 N.