When a Student and a Professor Co-Author an Article for Publication

When a student and a professor co-author an article for publication in a professional journal:

A) the student should be listed as the second author, after the professor.
B) the student and professor should decide on the order of authorship credit before they begin working on the project.
C) the professor should do most of the work because the professor has more experience with publishing.
D) the professor should be listed as the first author, with the student second.
E) the one who contributed the most to producing the article should the first-listed author.