TestKing.com has a server named SQL1 that runs SQL Server 2005 Enterprise Edition.SQL1 has 2 GB of RAM， 1.6 GB of which are used by the default SQL Server database engine instance. The average data growth of all databases combined is 100 MB a month. Users state that report execution times are increasing. You want to assess whether more RAM is needed. You need to use System Monitor to create a counter log that will help you decide whether to add RAM. Which performance object should you add to the counter log？（）

A. MSAS 2005：Cache
B. MSAS 2005：Memory
C. MSAS 2005：Proactive Caching
D. SQLServer：Buffer Manager