The radio button emoji represents a circular option button.
Unicode: U+1F518
The radio button emoji depicts a circular button commonly used in user interfaces to select one option from a set of mutually exclusive choices. It is often used to represent decision-making, choices, or preferences in digital contexts.
"Don't forget to select your preferred delivery option ð"
"I'm torn between these two options - help me decide ð or ð?"
"The survey results showed a clear preference for option ð."