Which of the following is true?

(A) The equilibrium of a charged particle under the action of coulomb force alone can never be stable.
(B) A hollow metal sphere placed on an insulating stand is charged positively. The electric potential inside is same as on surface
(C) A free electron and a free proton are placed in a uniform field, both will experience same magnitude of the force
(D) A free electron and a free proton are placed in a uniform field, both will experience same acceleration

Choose the correct answer from the options given below:

(A), (B) and (C) Only

The correct answer is Option (3) → (A), (B) and (C) Only