What does a Shared Services project manager do during an SAP Ariba Sourcing deployment?

What does a Shared Services project manager do during an SAP Ariba Sourcing deployment?
A . Delivers ongoing adoption support during the length of the customer contract
B . Provides functional knowledge of Sap Ariba software capabilities;
C . Perform configuration testing in test and production environments
D . Provides day-to-day project management

Answer: B,D