Given this information, what is the beginning of the filename in which the log will be written?

Assume the code below is executing:

Business Manager has the configuration:

✑ Active Log category is “root” with log level of “info.”

Given this information, what is the beginning of the filename in which the log will be written?
A . xyz
B . custominfo-blade
C . custom-export
D . custom-xyz

Answer: D