I'm not quite sure what this article is about. All the answers seem relevant to the question because I have no context of the article. Could you leave a file of the article?
The last choice, "Teens who sleep less than 5 hours a night suffer from more immune related illnesses according to a study released in 2015 by the American Journal of Medicine." It gives a source to where the information had been gathered.
Answer:
Because it is a clue that is meant to send whoever found it on a wild goose chase. Example: If someone was looking for a red apple, and I left a note that said Someone else took the apple but i really had it. Weak example but thats what i got.
Explanation:
