Which factor will assist Domain.com to determine which backend database (Oracle or SQL Server) to use, prior to deploying StorageScope FLR in their environment?

A.
Number of Databases, Exchange Servers and Files

B.
Number of Databases, Exchange Servers, Hosts and NAS File Servers

C.
Number of Databases, Exchange Servers and Hosts

D.
Number of Databases, Hosts, Storage Arrays and NAS File Servers