The correct answer is: A. By right click and set width menu.
To set the width of the taskbar, right-click on an empty space on the taskbar and select “Taskbar and Start Menu Properties”. In the Taskbar and Start Menu Properties window, click on the “Taskbar” tab and then use the “Taskbar Width” slider to adjust the width of the taskbar.
Option B is incorrect because the taskbar does not need to be unlocked to set its width.
Option C is incorrect because the applications do not
need to be opened to set the width of the taskbar.Option D is incorrect because
other toolbars do not need to be disabled to set the width of the taskbar.