In your multitenant container database (CDB) containing pluggable databases (PDB), users complain about performance degr

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In your multitenant container database (CDB) containing pluggable databases (PDB), users complain about performance degradation.How does real-time Automatic Database Diagnostic Monitor (ADDM) check performance degradation and provide solutions?

A. It collects data from SGA and compares it with a preserved snapshot.
B. It collects data from SGA, analyzes it, and provides a report.
C. It collects data from SGA and compares it with the latest snapshot.
D. It collects data from both SGA and PGA, analyzes it, and provides a report.