The electric potential at x = 3.00 m is 120 V, and the electric potential at x = 5.0 m is 190 V. What is the x component of the electric field in this region, assuming the field is uniform?
A. 75.0 N/C
B. 35.0 N/C
C. -35.0 N/C
D. 140 N/C
E. -140 N/C