An activity in a workflow process can be a _____.
A.
Notification or asubprocess, but not a PL/SQL function
B.
Subprocess or a PL/SQL function, but not a notification
C.
PL/SQL function or a notification, but not asubprocess
D.
PL/SQL function, a notification, asubprocess, or a business event
E.
PL/SQL function, asubprocess, or a business event, but not a notification