A 15 $\mu$ F Capacitor Is Connected to a 50

Multiple Choice

A 15. $\mu$ F capacitor is connected to a 50. V battery and becomes fully charged. The battery is removed and a slab of dielectric that completely fills the space between the plates is inserted. If the dielectric has a dielectric constant of 5.0, what is the voltage across the capacitor's plates after the slab is inserted?

A) 0.25 kV
B) 0.10 kV
C) 2.0 V
D) 10. V
E) 20. V