You need to create a performance baseline report

You have an Exchange Server 2007 environment. You need to create a performance baseline report.
What should you do?

A.
In the Exchange Best Practices Analyzer, run the Health Check scan

B.
In the Exchange Best Practices Analyzer, run the Connectivity Test scan

C.
In the Exchange Best Practices Analyzer, run the Exchange 2007 Readiness Check scan

D.
Use the Performance Troubleshooter tool