You are analyzing the performance of a SQL Azure database.   You need to recommend an approach for identifying the indexes that should be added to improve database performance.  What should you recommend？（）

• A、 Use SQL Server Profiler to identify missing indexes.
• B、 Use the Database Engine Tuning Advisor to identify missing indexes.
• C、 Use a Dynamic Management View to analyze query plans.
• D、 Use a DynamicManagement View to ascertain the number of pending I/O requests.