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      Question

      Which phase of the compiler ensures that identifiers are

      declared before they are used?
      A Lexical Analysis Correct Answer Incorrect Answer
      B Syntax Analysis Correct Answer Incorrect Answer
      C Semantic Analysis Correct Answer Incorrect Answer
      D Intermediate Code Generation Correct Answer Incorrect Answer
      E Code Optimization Correct Answer Incorrect Answer

      Solution

      Semantic analysis verifies type and scope rules, ensuring identifiers are declared.

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