Which three actions may be done using the Anaconda installer when working with an Oracle Linux 6 system? (Choose three.)
A. downgrading an installed system
B. booting an installed system from a local drive
C. attempting a rescue to repair problems with a partition table that prevents booting an installed system
D. deinstalling an installed system
E. upgrading an installed system
Correct.
B and C are really about the Anaconda Rescue mode.
Source
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/installation_guide/sect-rescue-mode