Which two statements are true about troubleshooting failed patching activities?

Which two statements are true about troubleshooting failed patching activities? (Choose two.)
A. Dependency issues found during yum updates should be ignored by using the force option.
B. Failed storage cell patches are rolled back to the previous release automatically.
C. Failed OS patches on database servers can be rolled back.
D. Dependency issues that are found during yum updates require rolling back to a previous release before retrying.
E. Bundle patches applied by using opatch auto cannot roll back only the database or the grid infrastructure home.
F. Database server OS updates can be rolled back by using opatch auto -rollback.

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