What does the Real-Time Dynamic Choice prompt type provide?

A.
It creates a prompt for real-time UNIX time stamp values.
B.
It creates a scrollable list menu populated in real-time (during tool execution) by the values in a
specified file.
C.
It creates a scrollable list populated by the results of an ObjectServer query in real-time (during
tool execution).
D.
It creates a scrollable list populated by the result of a query from any database in real-time
(during tool execution)