If it's only regarding the invention of a specific dental equipment, it'll be to inform. the student is preparing to share their knowledge on the dental drill.
to persuade is usually the purpose when there's a question or an argument being raised, and in this case, it doesn't sound like anyone would be against dental drills. dental drills is also a fairly dry topic, so it's doubtful that the student would be aiming to entertain. it isn't a demonstration because the student likely isn't giving a step by step how to in regards to using a dental drill.
I believe it's C. But don't take my word for it, it's just what I think it is but it would be wrong.
Answer:
After the Stamp Act was passed in 1756 by the Parliament of Great Britain, direct tax was levied on any material printed by the American colonies for legal and commercial use. These printed materials included newspapers, magazines, legal documents, and playing cards to mention just a few.
The tax had to be paid in legal British currency and not the paper money used by the colonists.
Explanation:
Kono Dio Da!!!!