The term 'Bit' is short form for

[ A ]    Binary Digit
[ B ]    Binary Information Unit
[ C ]    Binary Language
[ D ]    Binary Number
[ E ]    Megabyte
Answer : Option A
Explanation :
The term bit is a portmanteau of binary digit. It is the basic unit of information in computing and digital communications. A bit can have only one of two values, and may therefore be physically implemented with a two-state device. These values are most commonly represented as either a 0 or