The correct answer is (a) Start.
The Start button is located in the lower-left corner of the screen. When you click on the Start button, a menu will appear with a list of programs and options. One of the options on the Start menu is Help. Clicking on the Help option will open the Help and Support Center, which provides information and assistance on using Windows.
The End button is located in the lower-right corner of the screen. When you click on the End button, a menu will appear with a list of options, including Shut down, Restart, and Log off.
The Restart button is located in the lower-right corner of the screen. When you click on the Restart button, your computer will shut down and then restart.
The None of these option is incorrect because the Help menu is available on the Start button.