Which HTML input type is used to select a single option from a set?

Which HTML input type is used to select a single option from a set?

• A. Radio
• B. Text
• C. Button
• D. Checkbox

Answer: (A)

When you want the user to pick exactly one option from a group, use radio inputs. Radio buttons are designed so that options that belong together form a single mutually exclusive set. In practice, each option is an input element of type radio, and all of them share the same name attribute. The browser then ensures that only one of those options can be checked at a time, showing the familiar circular selectors with one selected dot when chosen. This is different from a text input, which is for free-form text entry; a button is used to trigger actions rather than make a selection from options; and a checkbox allows multiple selections from a set, not just one. So for a single-choice choice, radio inputs are the appropriate choice.

When you want the user to pick exactly one option from a group, use radio inputs. Radio buttons are designed so that options that belong together form a single mutually exclusive set. In practice, each option is an input element of type radio, and all of them share the same name attribute. The browser then ensures that only one of those options can be checked at a time, showing the familiar circular selectors with one selected dot when chosen.

This is different from a text input, which is for free-form text entry; a button is used to trigger actions rather than make a selection from options; and a checkbox allows multiple selections from a set, not just one. So for a single-choice choice, radio inputs are the appropriate choice.