Which two statements are true about the Automatic Database Diagnostic Monitor （ADDM）（）

• A、The ADDM requires at least four AWR snapshots for analysis.
• B、The ADDM runs after each AWR snapshot is collected automatically by MMON.
• C、The results of the ADDM analysis are stored in the Automatic Workload Repository （AWR）.
• D、The ADDM analysis provides only diagnostic information but does not provide recommendations.
• E、The ADDM calls other advisors if required， but does not provide recommendations about the advisors.