You work in a company which is named Wiikigo Corp. The company uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. The server has a very large database named DB1. An application which is constantly available uses DB1. Now you get a report from users, in the report users complain that server has a poor performance. As the technical support, you have to improve the performance of the application by using the Database Engine Tuning Advisor. Besides this, you must make sure that the action of analyzing the workload will not affect the performance of the production server.So what should you do?（）

A. On the local server, enable the XP_MSVER stored procedure
B. On the remote server, enable the XP_MSVER stored procedure.
C. On the production server, use the dta.exe utility along with an XML input file.
D. You should configure a test server that has a similar hardware configuration. Use the dta.exe utility on the test server along with an XML input file