Multiple choice How many valid categories of character sets are there in C language? 5 4 3 2 None of these Reveal answer Fill a bubble to check yourself B Correct answer Explanation C character set has four categories which are:- 1) Letters (capital A to Z and small a to z) 2) Digits (decimal digits 0-9) 3) White spaces (back space, new line etc) 4) Special characters (comma, colon etc)