1. External data segments
  2. External subroutines
  3. Data located in other procedures
  4. All of the above
  5. None of the above
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1 Answers

Answer: Option 2

An external subroutine is a sequence of statements that performs a discrete function, compiled separately from the calling program. Unless the subroutine is in the same file as the calling program, it must be cataloged in the account before being called.

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