You are running a debugging session and you have set the debug environment to
TDERROR_ALL_ALL=5 using the command export TDERROR_ALL_ALL=5. How do you return
the debug value to defaults?

A.
fw ctl debug 0x1ffffe0

B.
fw debug 0x1ffffe0

C.
export TDERROR_ALL_ALL

D.
unset TDERROR_ALL_ALL