What are the prerequisites in SAP CRM for integrating with SAP Sales and Service Cloud? Note: There are 2 correct answer to this question.

What are the prerequisites in SAP CRM for integrating with SAP Sales and Service Cloud? Note: There are 2 correct answer to this question.
A . SAP CRM 7.0 must have EHPO SP6 installed
B . SAP CRM must integrate with SAP ERP 6.0 EHPO SP6.
C . The SAP SAP Sales and Service Cloud add-on must be installed on SAP CRM
D . The SAP CRM system must be dual stack.

Answer: AC