In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.
A little bird told me

Options

A. Have a strong network of spies from where you get reliable information from which you can profit.
B. Used to indicate that the speaker knows something but chooses to keep the identity of their informant secret.
C. A secret which is known by everybody.
D. A person unknowingly letting out a secret.

Answer

B