Question

Which one of the following is correct rule for declaring variable name ?
1 It contain letters, numbers, underscore or a combination of these
2 It must begin always with a letter or the underscore symbol
3 It cannot contain any other special character like %, !, # etc
4 All of the above

Answer 1

Answer:

all

Explanation:

It contain letters, numbers, underscore or a combination of these

2 It must begin always with a letter or the underscore symbol

3 It cannot contain any other special character like %, !, # etc

4 All of the above