The correct answer is A. Control Box property.
The Control Box property is a property of a window that determines whether or not the window has a control box. The control box is the small square in the upper-left corner of a window that contains the minimize, maximize, and close buttons. If the Control Box property is set to false, the window will not have a control box.
The Minimize property is a property of a window that determines whether or not the window can be minimized. If the Minimize property is set to true, the window can be minimized by clicking the minimize button in the control box. If the Minimize property is set to false, the window cannot be minimized.
The Maximize property is a property of a window that determines whether or not the window can be maximized. If the Maximize property is set to true, the window can be maximized by clicking the maximize button in the control box. If the Maximize property is set to false, the window cannot be maximized.
The Close property is a property of a window that determines whether or not the window can be closed. If the Close property is set to true, the window can be closed by clicking the close button in the control box. If the Close property is set to false, the window cannot be closed.
In conclusion, the Control Box property is the only property that removes the title bar elements.