Allows the visitor to select one of a number of mutually exclusive options:

Each set of radio buttons is called a ‘cluster‘. Selecting one radio button in a cluster automatically deselects all the other buttons in the cluster.
The following parameters are provided:
| Parameter | What it means |
| Name | The name identifying the cluster of radio buttons, and the parameter sent to the form script. |
| Value | The value to identify this radio button. The value of the selected radio button will be the value of the parameter sent to the form script. Each button in a cluster should have a different value. |
| Text | The label for the button. |
| Checked | The default state of the radio button. |