You execute the following Recovery Manager （RMAN） commands in he following order：   BACKUP VALIDATE DATABAE RECOVER CORRUPTION LIST；   Which two tasks are performed by these commands？（）  

A

 Repair the corrupted blocks. If any. In the backup created

B

 Populate VSCOPV_CORRUPTION with names of files that have corrupted blocks

C

 Back up the database after checking whether array of the files have corrupted blocks

D

 Discover any corrupt blocks that are viewable with the VSDATABASE_BI-OCK_CORBUPTION view

E

 Repair all corrupted blocks that have been logged in the VSDATABASE_BLOCK_ CORRUPTION