What are the integration tools that you can use with such a setup for data transfer?

You need to integrate data from SAP S/4HANA and legacy ERP to SAP IBP.

What are the integration tools that you can use with such a setup for data transfer? Note: There are 2 correct answers to this question.
A . SAP Cloud Integration for data services
B . SAP Smart data Integration
C . Core Interface
D . Real-time Integration

Answer: A, B