According to the text, sociologists would consider someone who listens to public radio but never contributes during pledge drives as a

A) free rider.
B) parasite.
C) social tragedy.
D) community malcontent.

Free Rider

A term used in economics and political science to describe individuals who benefit from resources, goods, or services without paying for them or contributing to their provision.

Pledge Drives

Fundraising efforts, often conducted by public broadcasting stations, where viewers or listeners are encouraged to make donations to support the station.