How can troubleshoot HANA installer when its crashes There are 2 correct answers to this question.

How can troubleshoot HANA installer when its crashes There are 2 correct answers to this question.
A . run hdblcm with the check_installation action
B . set the environment variable HDB_INSTALLER_TRACE_FILE to the trace filename
C . create the dirctory containing the trace file
D . activate the debug mode for the database trace

Answer: B,D