Answer:
Brahmins, Kshatriyas, Vaishya and Shudras
If you are using the three-button mouse, in order to access the shortcut menus, you would right click the mouse.
If you right click your mouse, it will show shortcut menus that can be easily accessed.
I think assembly level command mov ,push ,call
One 4-GB DIMM. Dont really have a explanation for it just comes from previous experience