单项选择题

A.Record a weeks user activity by using SQL Profiler. Apply structural changes. Replay the activity and then run the Usage Based Optimization Wizard.
B.Apply structural changes. Run the Database Engine Tuning Advisor.
C.Apply structural changes. Run the Usage Based Optimization Wizard.
D.Record a weeks user activity by using SQL Profiler. Apply structural changes. Run the Database Engine Tuning Advisor.