You are planning a SharePoint Server 2010 Service Pack 1 (SP1) server farm.
You need to recommend which editions of Microsoft SQL Server 2008 R2 must be deployed to support online index rebuilding.

Which editions should you recommend?
(Each correct answer presents a complete solution.Choose all that apply.)

A.
Workgroup

B.
Standard

C.
Enterprise

D.
Datacenter

E.
Web