Identify the important features of the semiconductor devices from the following.

(A) Semiconductor devices require cathode heating for the production of charge carriers.
(B) They have long life and high reliability.
(C) They are small in size and consume low power.
(D) They operate at high voltage.

Choose the correct answer from the options given below:

(B) and (C) only

Correct statements: (B) and (C)

Explanation:
(B) ✔ Semiconductor devices have long life and high reliability due to absence of filaments and moving parts.
(C) ✔ They are small in size and consume very low power during operation.
(A) ✖ They do not require cathode heating — charge carriers are generated thermally or by doping.
(D) ✖ They operate at low voltage, not high.