A Point Charge of 7 $\mu$ C Is Located Inside a Hemisphere,which Consists of Two Surfaces

A point charge of 7.8 $\mu$ C is located inside a hemisphere,which consists of two surfaces: a flat disk topped by half a sphere.If the electric flux through the half-sphere is 5.3 * 10⁵ Nm²/C,what is the flux through the flat disk section?

A) 2.3 * 10⁵ Nm²/C
B) 3.5 * 10⁵ Nm²/C
C) 5.3 * 10⁵ Nm²/C
D) 8.83 * 10⁵ Nm²/C
E) More information is required to determine this flux.