Which of the following rules need to be followed when using variables?
Choose all that apply.

- All variable names must begin with a letter of the alphabet or an. underscore( _ ).

-After the first initial letter, variable names can also contain letters and numbers.

-Uppercase characters are distinct from lowercase characters.

-You cannot use a C++ keyword as a variable name.

Variable names must begin with a letter or an underscore( _ )

After the first initial letter, variable names can also contain letters and numbers. ...

Uppercase characters are distinct from lowercase characters. ...

You cannot use a keyword as a variable name.

Explanation:

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