Where is this file located?

The file ike.elg is a log file used to log IKE negotiations during VPN tunnel establishment.
Where is this file located?

A.
/opt/CPsuite-R77/fw1/log

B.
/var/log/opt/CPsuite-R77/fg1/log

C.
/opt/CPshrd-R77/log

D.
/opt/CPsuite-R77/fg1/log