Explanation:
b. affordable care is guaranteed by the kaw
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.
The answer for the
blank space is <span>"Elastic" or "necessary and proper clause".</span><span>
</span><span>To make all Laws which should be important and appropriate
for conveying into Execution the enumerated powers, and every single other
Power vested by this Constitution in the Legislature of the United States is
mentioned in the elastic or necessary and proper clause</span>