Which two key areas of UC's data migration test plan should be included?

Which two key areas of UC’s data migration test plan should be included?

Universal Containers (UC) is planning for a huge data migration as part of their Service Cloud implementation. UC, has approximately 15million customers, 30 million contacts, and 30 million active cases.

Which two key areas of UC’s data migration test plan should be included? Choose 2 answers
A . API’s to be used for data migration.
B. Success criteria for data migration.
C. Target Salesforce Server and Source system IP address.
D. Manual and Automated data validation approaches.

Answer: A,B