user@host# set interfaces ge-0/0/5 gigether-options redundant-parent reth1
user@host# set interfaces ge-5/0/5 gigether-options redundant-parent reth1
user@host# set interfaces reth1.0 family inet address 192.168.1.100/30
user@host# commit
[edit interfaces reth1]
‘unit 0’
reth1 needs to be associated with a non-zero redundancy-group
error: configuration check-out failed
— Exhibit —
Click the Exhibit button.
Referring to the exhibit, you have built a chassis cluster, set up a reth, and put interfaces into the reth.
However, when you try to commit the configuration, you receive the error shown in the exhibit.
Which configuration command will correct this error?

A.
Set chassis cluster reth-count 2

B.
Set chassis cluster redundancy-group 1 interface-monitor reth1

C.
Set interfaces reth1 redundant-ether-options redundancy-group 1

D.
Set chassis cluster redundancy-group 0 interface-monitor reth1