Under which condition would a -RESET INDOUBT command be necessary?

A.
When DB2 is the commit coordinator and is unable to resolve in-doubt threads.

B.
When the commit coordinator is unable to determine if threads should be committed or rolled
back.

C.
When DB2 cannot determine if the threads should be committed or rolled back.

D.
When in-doubt threads have been resolved and DB2 cannot synchronize with the commit
coordinator.