You have a SharePoint Server 2010 Service Pack 1 (SP1) server farm. The farm contains 10 front-end
Web servers that have the query server role installed. You plan to index 15 million items. You need
to recommend a solution to minimize the amount of time it takes to return search results to end
users. What should you include in the recommendation?

A.
crawl rules

B.
index partitioning

C.
authoritative pages

D.
crawler impact rules