What are some activities SAP is responsible for during an upgrade to RISE with SAP S/4HANA Cloud, private edition? Note: There are 2 correct answers to this question.

What are some activities SAP is responsible for during an upgrade to RISE with SAP S/4HANA Cloud, private edition? Note: There are 2 correct answers to this question.
A . Tasks in the SAP Readiness Check
B. Tasks in the Software Update Manager
C. Tasks related to custom code optimization
D. Tasks in Client 000

Answer: B,D