Where would you begin the investigation of this performance issue?

In your organization the Oracle Database 11g installation includes the Oracle Diagnostic Pack.In your database, the STATISTICS_LEVEL and
CONTROL_MANAGEMENT_PACK_ACCESS parameters, and the snapshot interval and retention period have been set to default values.Two users of your database have complained that a particular job or session is very slow for a transient interval of about 10 minutes during the day when the rest of the instance is performing as usual.
Where would you begin the investigation of this performance issue?

In your organization the Oracle Database 11g installation includes the Oracle Diagnostic Pack.In your database, the STATISTICS_LEVEL and
CONTROL_MANAGEMENT_PACK_ACCESS parameters, and the snapshot interval and retention period have been set to default values.Two users of your database have complained that a particular job or session is very slow for a transient interval of about 10 minutes during the day when the rest of the instance is performing as usual.
Where would you begin the investigation of this performance issue?

A.
ASH

B.
ADDM

C.
Alert log

D.
Load Profile in an AWR Compare Period report

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