Polarization of dielectrics

The above diagram shows the change in polarization of the molecules that consist of a dielectric material when an external electric field is applied. Which of the following statements is correct?

a) Electric dipoles already exist in the dielectric material before the external electric field is applied.

b) While the external electric field is applied, the direction of the electric dipoles in the dielectric material tends to line up parallel to the direction of the electric field.

c) If we put this dielectric material between two metal plates of a capacitor, the electric field strength inside the capacitor will increase.

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