Which statement describes the "Intelligent PULL Run Mode" of Streaming Process Chain property?

Which statement describes the "Intelligent PULL Run Mode" of Streaming Process Chain property?

A. SAP BW/4HANA receives a trigger from a Daemon in the source system. This event runs the Process Chain immediately

B. SAP BW/4HANA checks once a minute if a new record is generated in the source system. If this check is successful, the Process Chain starts immediately

C. The concept is obsolete in SAP BW/4HANA. SAP recommends leveraging the new "PUSH Run Mode" for Streaming Process Chain instead

D. An SAP BW/4HANA Process Chain is scheduled as a periodic job with high frequency up to each minutes. The Process Chain runs accordingly

Answer: B