The closed surface shown in the figure below has dimensions a = b = 0.5 m and c = 0.8 m. The left edge of the closed surface is located at x = a. The electric field throughout the region is nonuniform and is given by E→ = (3.0+2.0 x)i^ N/C, where x is in m. Calculate the net electric flux through the closed surface. A. 1.0 Nm2/C B. 0.4 Nm2/C C. 1.6 Nm2/C D. 0.2 Nm2/C E. 2.4 Nm2/C