Consider two identical parallel plate capacitors $($same area of the plates and same separation distance between the plates$)$:

Capacitor A has a slab of linear dielectric material filling the space between the plates

Capacitor B has no dielectric.

Which of the following is true?

For a given potential difference between the plates V$,$ the electric field in Capacitor A will be lower than Capacitor B$.$

It would take more energy to charge Capacitor B to a potential V than to charge Capacitor A to the same potential.

If Capacitor A is charged, there will be a net force pushing the slab of dielectric material outward.

The capacitance is higher for Capacitor A$.$