By default, where are IBM Cloud Pak for Data user records stored?

By default, where are IBM Cloud Pak for Data user records stored?
A . Internal repository database
B . LDAP
C . Db2 database
D . Properties file

Answer: A

Explanation:

https://www.ibm.com/support/producthub/icpdata/docs/content/SSQNUZ_current/cpd/admin/users.html