. . . . . . . . button is used to select a control from the form.

The correct answer is: B. Select button.

A select button is a type of button that is used to select a control from a form. When a select button is clicked, the control that it is associated with is selected. This can be useful for selecting multiple controls at once, or for selecting a specific control from a list of controls.

The other options are incorrect because they are not used to select a control from a form.

• Exit button: An exit button is used to close a form.
• Edit button: An edit button is used to edit the contents of a control.
• Delete button: A delete button is used to delete a control from a form.