Which customizing activities are allowed through the self-service configuration Ul? There are TWO answers for this Question

Which customizing activities are allowed through the self-service configuration Ul? There are TWO answers for this Question
A . Deletion of SAP Best Practices content
B. Addition of new SAP Best Practices business processes
C. Adaptation of fields within SAP Best Practices content
D. Addition of new custom fields within SAP Best Practices content

Answer: C,D