Which statement about migrating a DB2 data sharing system to a new DB2 version is correct?

A.
You need to bring down all the members of the DB2 data sharing group except one while
running the DB2 CATMAINT utility.

B.
If you use COEXIST=YES, there is no need to run CATMAINT with a single member active. All
members can be active during CATMAINT.

C.
You can run CATMAINT with all members of the data sharing group active in DB2.

D.
You can only run the DSNTIJNF job (that switches the system to new-function mode) with a
single member active in the DB2 data sharing group.