What is the meaning of the idiom " To play second fiddle"?

To support the role and view of another person

The correct answer is To support the role and view of another person.

The other options are incorrect.

• Second class citizen does not match the meaning of the idiom.
• To reduce importance of one's senior does not match the meaning of the idiom.
• To do back seat driving does not match the meaning of the idiom.