You use the following command to create a disk group:CREATE DISRGROUP DATA NORMAL REDUNDANCYFAILGROUP fg_f ra_l DISK -'/

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You use the following command to create a disk group:CREATE DISRGROUP DATA NORMAL REDUNDANCYFAILGROUP fg_f ra_l DISK -'/dev/sda6' NAME FRA_DISKl,'/dev/sda7' NAME FRA_DISK2FAILGROUP fg_fra_2 DISK -'/dev/sdb1' NAME FRA_DISK3,'/dev/sdb2' NAME FRA_DISK4FAILGROUP fg_fra_3 DISK -'/dev/sdc1' NAME FRA_DISK5,'/dev/sdc2' NAME FRA_DISK6ATTRIBUTES -'AU_SIZE' = '4M''compatible.rdbms' = '11.1.0';Which two statements are true about the data disk group?

A. Each disk in a failure group is a mirror of the corresponding disk in the other failure groups. For example, FRA_DISK2 is a mirror of FRA_DISK4 and FRA_DISK6.
B. By default, the files created in this disk group must have, for each extent, one primary copy and two mirror copies; one on each of the failure groups.
C. Because the size clause is not used, the disk group uses the same amount of space on each disk.
D. The 'compatible. rdbms' attribute specifies the minimum COMPATIBLE setting for any database using this disk group. E. If the FRA_DISK2 disk fails, there are mirrored copies in one of the other failure groups for any primary extents that are on FRA_DISK2. F. The allocation unit, AU_SIZE, sets the size of the disk read and write to ASM diskgroups.