It has to be controls since controls restrict users from entering wrong values. For example, using a dropdown or radiobutton or date instead of a simple text box.

Yes, i agree that the controls restricts values. But the answer is somewhat confusing, because user will select appropriate values in the control (like selecting a value in the radio button control or selecting values from the drop down control) and user is not selecting the control itself.

The option says "Providing a selection of the appropriate controls" instead of saying "Providing a control to select the appropriate values"

Yes that will clear the confusion, will make that change.