To answer this question, you need to understand the command used to activate the interactive trace in REXX.
Option A) TRACE R - This option is incorrect because the TRACE R
command does not activate the interactive trace. Instead, it activates the trace for the execution of a REXX program.
Option B) TRACE ?R - This option is correct because the TRACE ?R
command activates the interactive trace. The ?
symbol is used to indicate an interactive trace in REXX.
Option C) TRACE IR - This option is incorrect because the TRACE IR
command does not activate the interactive trace. Instead, it activates the trace for the execution of a REXX program.
Option D) INTTRACE R - This option is incorrect because the INTTRACE R
command does not activate the interactive trace. Instead, it activates the internal trace for the execution of a REXX program.
The correct answer is B) TRACE ?R. This option is correct because it activates the interactive trace in REXX.