What Is a Protocol

What is a protocol?

A) an intelligent connecting device that examines each packet of data it receives and then decides which way to send it onward toward its destination
B) a reference to the geometric arrangement of the actual physical organization of the computers and other network devices in a network
C) a standard that specifies the format of data as well as the rules to be followed during transmission
D) the capability of two or more computer systems to share data and resources, even though they are made by different manufacturers