The separation between the plates of a charged parallel plate capacitor is increased. Which of the following quantities will change?

(A) charge on the capacitor plates
(B) potential difference across the capacitor
(C) energy of the capacitor
(D) energy density between the plates of the capacitor

Choose the correct answer from the options given below:

(B) and (C) only

The correct answer is Option (3) → (B) and (C) only