In which of the following years was the first radio show broadcast in India?

Correct option is A

Broadcasting in India actually began about 13 years before AIR came into existence.
The first radio broadcast in India was on June 23, 1923, by the Radio Club of Bombay.
This was followed by the setting up of the Calcutta Radio Club five months later. The Indian Broadcasting Company (IBC) came into being on July 23, 1927