There are two electric charges, $Q_1$ and $Q_2$, placed in vacuum. Identify the correct statements from the following.

(A) There will be an electrostatic force between them.
(B) If these charges are placed in water, the force between them will increase.
(C) The electrostatic force between them is a conservative force.
(D) If both of the charges are doubled as $2Q_1$ and $2Q_2$, then the force between them will become 4 times.

Choose the correct answer from the options given below:

(A), (C) and (D) only

The correct answer is Option (2) → (A), (C) and (D) only

(A) There will be an electrostatic force between them. (Correct)
(B) If these charges are placed in water, the force between them will increase. (Incorrect)
(C) The electrostatic force between them is a conservative force. (Correct)
(D) If both of the charges are doubled as $2Q_1$ and $2Q_2$, then the force between them will become 4 times. (Correct)