A reference page
A quote in an article
Quoting it in a story or essay.
Verbally telling it to someone
Helpful feedback means sharing with your peers what you think they can improve on. When giving feedback you should be polite and not too mean but let them know at the same time. They want feedback to get better so help them out.
Answer:
The subject of a talk, piece of writing, exhibition,etc,a topic is called theme.
The answer would be the first one
