Which operation can be performed by executing an ALTER STOGROUP statement?

A.
Change the name of an existing storage group.

B.
Make an existing storage group the default storage group.

C.
Reduce the current high water mark of all table spaces that have been assigned to a storage
group.

D.
Specify the average time, in milliseconds, that it takes to read one page of data from the
slowest storage path used by a storage group.

Explanation: