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Which of the following special symbol allowed in a variable name?

  • A.* (asterisk)
  • B.| (pipeline)
  • C.- (hyphen)
  • D._ (underscore)

Answer: D

Correct answer: _ (underscore)

An identifier may contain letters, digits and the underscore, and may not begin with a digit. The underscore is therefore the only special character permitted, and it is how multi-word names are written where the language will not accept a hyphen or a space.

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