You administer a SQL Server 2008 instance. The instance is located on a four-processor,
quad-core server. The server frequently experiences CPU pressure. The instance contains
a very large missioncritical database that is used continuously. You need to ensure that
online index rebuilds do not consume all available CPU cycles. Which configuration option
should you use?

A.
affinity mask

B.
affinity I/O mask

C.
max degree of parallelism

D.
optimize for ad hoc workloads