A university student buys an essay from an online paper-writing website and turns it in for a grade. The teacher discovers the plagiarism. Which best describes a consequence the student might suffer for plagiarizing?

The student will be expelled from the university.

The student will have to reveal the name of the paper-writing website to the teacher.

The student will have to write a letter of apology.

The student will have to promise never to do it again.