The default property for a command control is:

The correct answer is: A. caption

A command control is a type of control that is used to initiate an action. The default property for a command control is the caption, which is the text that is displayed on the control. The caption is used to identify the action that the control will perform.

The other options are incorrect because they are not properties of command controls.

• Option B, text, is a property of text boxes. Text boxes are used to enter text.
• Option C, list, is a property of list boxes. List boxes are used to display a list of items from which the user can select one or more items.
• Option D, background, is a property of all controls. The background is the color or image that is displayed behind the control.