Answer : 2. "At the bottom of the screen"
Explanation :

1. The first and main part of the taskbar is the Start Button. Which is situated in the bottom left corner. It is also called Menu Button. Its structure also depends on the Windows version. It can be round, square, or rectangular.

2. All Programs, Folders and Settings are accessed with the help of the Start Button. From here you can find the program of your choice, run it and create its desktop shortcut.