How do you provide the URL for the SAP Enable NOW content?

You have successfully configured user assistance in the SAP Fiori launchpad and you want to enable the SAP Enable Now Web assistant .

How do you provide the URL for the SAP Enable NOW content?
A . With parameter EXTSRV for profile parameter wdisp system_<x> of the SAP Web Dispatcher
B . With FLP setting LEARNING_APP_BACKEND_URL for FLP plugin WEB_ASSISTANT_HELP_PLUGIN
C . By setting server names for variant key sap help_en in transaction SR13
D . By setting the LEARNING_URL parameter for intent Shell-boot Config

Answer: B