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A language with dynamic scoping resolves a name using

  • A.the first declaration the compiler happens to find
  • B.the most recent binding in the call chain at run time
  • C.the innermost enclosing block in the program text
  • D.the declaration in the outermost scope of the program

Answer: B

Correct answer: the most recent binding in the call chain at run time

Dynamic scoping looks outward through the chain of active calls rather than outward through the enclosing text, so which declaration a name refers to depends on who called the procedure. It cannot be resolved at compile time, which is why static scoping is almost universal in modern languages.

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