Which two decisions should be made by an Architecture Review Board (ARB)? Choose 2 answers

Which two decisions should be made by an Architecture Review Board (ARB)? Choose 2 answers
A . Whether to create a new Salesforce object or override an existing object using a new Record Type
B. Whether to utilize the Waterfall or Agile methodology on the project
C. What testing tools should be used to track integration testing requirements
D. Whether to implement Single Sign -On with SAML or delegated authentication

Answer: A,D