Which of the following is NOT a rule that must be followed when naming identifiers? A) Identifiers can contain spaces. B) Uppercase and lowercase characters are distinct. C) The first character must be one of the letters a-zA-Z and underscore or a dollar sign. D) After the first character, you may use the letters a-2, A-Z. the underscore, a dollar sign, or digits 0-9.

In 4Test code, identifiers are the names you assign to user-defined things. Constants, variables, functions, methods, properties, windows, window classes, and data types are some of these components.

Identifiers use the following naming conventions:

They take case into account. MyVar and Myvar are not the same, in other words.

They start with an underscore (_) or an alphabetic character.

They can be any mixture of underscores, numbers, and alphabetic characters. They are capable of containing international characters with one byte, like é and.

Every character has importance.

Letters (including capital and lowercase letters), numbers, and underscores are all acceptable forms of identification. An identifier's first letter should either be a letter or an underscore. Keywords like "int" and "while" cannot be used as identifiers. There is no restriction on the length of an identifier.

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