Question

In C language can the first letter of the identifier by underscore (True / false) and give reason​

Answer 1

Answer:

true

A character set is a set of alphabets, letters and some special characters that are valid in C language.

Alphabets

Uppercase: A B C ................................... X Y Z

Lowercase: a b c ...................................... x y z

C accepts both lowercase and uppercase alphabets as variables and functions.