Which of the following statements about identifiers in C and C++ is correct?

Options

A. An identifier can begin with a digit.
B. An identifier can contain a space.
C. An identifier can contain letters, digits and underscore, subject to identifier rules.
D. More than one of the above
E. None of the above

C. An identifier can contain letters, digits and underscore, subject to identifier rules.

Answer: (C) An identifier can contain letters, digits and underscore, subject to identifier rules.

Identifiers can contain letters, digits and underscore. However, the first character cannot be a digit.

For example, student1 and student_name are valid identifiers.

An identifier cannot contain spaces or symbols such as - in the normal identifier syntax.

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