The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
The constitutional power that Congress has over the bureaucracy is that the United States Congress can exert control over the bureaucracy by overseeing and supervising the public funds that allow its operation. So Congress can control the funds the government offices need to operate and the members of Congress can approve the appointments of the President to the cabinet and other public offices. Congress forms committees to evaluate the necessities of the US bureaucracy and many times hold hearings with the heads of government departments to make sure the funds are justified.
Identity vs. Role Confusion; adolescents search for their sexual & occupational identity through the exploration of their goals, beliefs, and values. If an adolescent fails to establish a sense of identity, he feels unsure of himself and/or his place in society(role confusion/identity crisis).
I'm not lonely, but I'm fine with companionship
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.