Which three statements are true about Automatic Workload Repository (AWR)?

All AWR tables belong to the SYSTEM schema.

The AWR data is stored in memory and in t he database.

The snapshots collected by AWR are used by the self-tuning components in the database

AWR computes time model statistics based on time usage for activities, which are displayed in the v$SYS time model and V$SESS_TIME_MODEL views.

AWR contains system wide tracing and logging information.