Two Point Charges, +12 $\mu$ C and -60 $\mu$ C, Are Placed Inside a Cube Whose Volume Is 2

Multiple Choice

Two point charges, +12 $\mu$ C and -6.0 $\mu$ C, are placed inside a cube whose volume is 2.0 cm³. The net electric flux through the surface of the cube due to these charges is

A) 6.8 * 10⁵ N·m²/C.
B) 6.8 *10⁶ N·m²/C.
C) 6.8 * 10⁷ N·m²/C.
D) zero.