How is Quality Management in SAP S/4HANA Cloud integrated to SAP Digital Manufacturing Cloud (SAP DMC) as of release 2008?

How is Quality Management in SAP S/4HANA Cloud integrated to SAP Digital Manufacturing Cloud (SAP DMC) as of release 2008?
A . Via remote function call connection to the shop floor server
B . Via APIs by a link to the collaboration room
C . Via PP-PDC interface to control instructions and process messages
D . Via XSteps to the control instruction destination
E . By embedding SAP DMC in SAP S/4HANA Cloud 2008

Answer: B