The radio button field creates a pre-defined list of options. Options are defined by the admin and customers select from the list defined by the admin.
Autotag Users: Customers can be automatically tagged in Shopify with the value of their selection.
Options: Enter options here. Options can be simple text or use a key|value pair to display one value on the form and store another value as the selection.
Stacked: Choose to display the options horizontally or vertically on the form.