Read the following statements and identify the correct statements.

(A) In a semiconductor doped with trivalent impurity, the holes are the majority carriers and electrons are minority carriers.
(B) In pure semiconductors, the number of free electrons is equal to the number of holes.
(C) In a semiconductor doped with pentavalent impurity, electrons become the majority carriers and holes the minority carriers.
(D) Important electronic devices can be developed using intrinsic semiconductors.

Choose the correct answer from the options given below:

(A), (B) and (C) only

The correct answer is Option (1) → (A), (B) and (C) only

(A) In a semiconductor doped with trivalent impurity, the holes are the majority carriers and electrons are minority carriers. (Correct)
(B) In pure semiconductors, the number of free electrons is equal to the number of holes. (Correct)
(C) In a semiconductor doped with pentavalent impurity, electrons become the majority carriers and holes the minority carriers. (Correct)
(D) Important electronic devices can be developed using intrinsic semiconductors. (Incorrect)