What is the significance of executing this command?

An administrator has configured the following settings:

config system global

set log-checksum md5-auth

end

What is the significance of executing this command?
A . This command records the log file MD5 hash value.
B . This command records passwords in log files and encrypts them.
C . This command encrypts log transfer between FortiAnalyzer and other devices
D . This command records the log file MD5 hash value and authentication code.

Answer: D