A REXX program (or REXX EXEC) called DEMO is stored in the partitioned dataset TBISUSR.REXXCRS.EXEC. Execution is possible...

  1. ... via the TSO command: EXEC 'TBISUSR.REXXCRS.EXEC(DEMO)' EXEC, without any

  2. ... only after allocation of the partitioned dataset TBISUSR.REXXCRS.EXEC to the DD

  3. ... via the TSO command: CALL 'TBISUSR.REXXCRS.EXEC(DEMO)', without any additional

  4. ... only after compilation to COBOL, and via the TSO command:


Correct Option: A

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