Multiple choice technology mainframe What variable is used to hold the RC of REXX program? ZISPFRT ZISPFRC SYSRTC ZSYSRC Reveal answer Fill a bubble to check yourself B Correct answer Explanation In REXX programming within ISPF environments, the ZISPFRC variable is specifically used to store the Return Code (RC) from program execution. This is a standard convention in mainframe/REXX contexts for capturing exit status.