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      Question

      Which of the following tasks is not typically performed

      by a lexer?
      A Handling whitespace and comments Correct Answer Incorrect Answer
      B Identifying keywords and identifiers Correct Answer Incorrect Answer
      C Detecting syntax errors Correct Answer Incorrect Answer
      D Removing redundant code Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Lexers primarily focus on recognizing tokens and breaking down the source code. Removing redundant code is usually a concern for other compilation phases, such as optimization.

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