Which project types in the SAP Ariba Supplier Management Portfolio use matrix-based assignments? Note: There are 2 correct answer to this question

Which project types in the SAP Ariba Supplier Management Portfolio use matrix-based assignments? Note: There are 2 correct answer to this question
A . Supplier registration projects
B. Supplier qualification projects
C. Engagement Risk projects
D. Modular questionnaire projects

Answer: A B