Answer:
Using a quotation
Giving an anecdote
Presenting a serious of interesting facts
Asking a thought-provoking question
Explanation:
All options except providing a conclusion can lead to the reader wanting to continue reading. A conclusion, though, is an end.
An anecdote is good way to make a point while telling an interesting story.
Interesting facts are, obviously, interesting.
A thought-provoking question might make the reader intrigued and wanting to know more about the subject.
A similar thing can be done with a quotation if it comes from somebody important or intriguing.