What must you create when you build an integration scenario using the SAP Fiori Communication Management apps in SAP S/4HANA Cloud Public Edition? Note: There are 2 correct answers to this question

What must you create when you build an integration scenario using the SAP Fiori Communication Management apps in SAP S/4HANA Cloud Public Edition? Note: There are 2 correct answers to this question
A . Communication arrangement
B . Communication system
C . Communication API
D . Communication interface

Answer: A, B