Q.Which pair of form controls allows the user to select ONLY ONE option from a group of options? (A) Check boxes
(B) Radio buttons
(C) Text boxes
(D) Text areas

Two similar-looking controls let a user choose from options, but only one of them restricts the choice to a single option within a group. …

In an HTML form, radio buttons that share the same name attribute form one group in which only a single option can be chosen at a time. Check boxes, in contrast, allow any number of options to be ticked together.

(A) Check boxes allow multiple selections — incorrect.

(B) Radio buttons allow only one selection per group — correct. …

Students often mix up radio buttons and check boxes — remember round radio buttons = one choice only …