The correct answer is a file-server system. Hope this helps!
Answer:
Activity Diagrams
Activity. An activity diagram illustrates one individual activity. ...
Action. ...
Calling an Activity (Action) ...
Accepting an Event (Action) ...
Accepting a Time Event (Action) ...
Sending Signals (Action) ...
Edge (Control Flow) ...
Decision Node.
Explanation:
The Query object is used to asks a question about the data stored in a database and displays the specific fields and records that answer the question.
In code form, the select command is used for queries.
