Answer:
ARP is a simple query–response packet protocol used to match workstations hardware addresses to IP addresses. In other words, ARP is the protocol used to identify nodes in a LAN. ARP is described in RFC 826
Um okay, that's not a question so why even post it.
<span>The answer is letter C which is GUI. GUI means Graphic User Interface. GUI are elements such as icons, windows, menus, buttons, and other graphical elements. These GUI carry out commands that instead of reading words or phrases, graphics are used to be more convenient. </span>
I think it's 900 but I can't be sure.
British mathematician George Boole