Identify the correct statements among the following:

(A) The value of the electrostatic force constant, k depends on the medium between the two charges and on the choice of system of units.
(B) For two positively charged bodies, one more highly charged than the other, the force between them may be attractive.
(C) The charge on a body does change with its velocity.
(D) An electric dipole is a pair of two equal and similar charges placed at a very small distance.

Choose the correct answer from the following options:

(A) and (B) only

The correct answer is Option (2) → (A) and (B) only

(A) True. $k = \frac{1}{4 \pi \epsilon}$, where $\epsilon$ is the permittivity of the medium. Thus, $k$ depends on the medium and on the system of units used.

(B) True. Although two positive charges repel each other normally, if one body is highly charged and the other is a conductor, induced charges can create an attractive force.

(C) False. The charge on a body is invariant and does not change with velocity.

(D) False. An electric dipole consists of two equal and opposite charges separated by a small distance, not similar charges.

Correct statements: (A) and (B)