Which of the following statements are correct?

(A) Kirchhoff's loop rule represents energy conservation.
(B) Resistivity is a property of the material and depends on temperature.
(C) The electrical conductivity of the material does not depend on the material of the conductor and its temperature.
(D) The emf of a battery equals the potential difference between its terminals when the terminals are connected externally.

Choose the correct answer from the options given below:

(A) and (B) only

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

(A) Correct — Kirchhoff's loop rule is based on conservation of energy in electrical circuits.

(B) Correct — Resistivity is intrinsic to the material and varies with temperature.

(C) Incorrect — Electrical conductivity depends on material and temperature.

(D) Incorrect — EMF equals terminal potential difference only when no current flows; otherwise, terminal voltage < EMF due to internal resistance.

Correct statements: (A), (B)