Which statement about the different approachable to generating unique IDs is true?

A. A dedicated BPO should be used to generate readable keys.
B. A programmatic or model-based approach allows a developer to access the unique ID form their code once the key is generated.
C. The model-based approach should be used to generate keys from the Default KeySet.

D. A key set must be specified when using the programmatic approach.

Reference: https://www.ibm.com/support/knowledgecenter/SS8S5A_7.0.9/com.ibm.curam.content.doc/ServerDeveloper/c_SERDEV_Unique1UniqueIds1.html