To menu editor is available in . . . . . . . . button of the mouse

left
right
got focus
none of these

The correct answer is: A. left

The left mouse button is used to select items, open menus, and perform other actions. The right mouse button is used to open context menus, which provide additional options for the selected item. The middle mouse button is used to scroll up and down in a document or web page.

The menu editor is a tool that allows you to create and edit menus. It is available by clicking on the Edit menu and selecting Menu Editor.

I hope this helps!