What widget allows selecting one option from several alternatives?

The Radio Button Widget is designed specifically for scenarios where a user needs to select one option from a set of multiple alternatives. This widget visually represents options in a way that only one can be activated at any given time. When a user clicks on one radio button, any previously selected button within that group automatically becomes deselected, ensuring that only one choice is active.

This behavior is distinct and practical for forms where singular choices are necessary, such as selecting a payment method or choosing a subscription plan. The clear visual representation of the selected option helps users understand their choice easily.

In contrast, other options like the Checkbox Widget allow for multiple selections, which does not suit the requirement of selecting just one option. The Container Widget simply serves as a structural element for organizing items on a page and does not facilitate user input in terms of selection. The If Widget is used for conditional logic and does not pertain to user input or choice selection mechanisms. Thus, the Radio Button Widget is the most appropriate option for this scenario.