When an intrinsic semi conductor is doped with an acceptor impurity: (A) The hole concentration increases (B) The conductivity of semiconductor decreases (C) The electron concentration increases (D) The energy gap decreases Choose the correct answer from the options given below:

(C) and (D) only (A) and (B) only (A) and (D) only (B) and (D) only

(A) and (D) only

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