Ross, a college professor, downloads a PDF of an article from SSRN, the online database for social- science research. He posts a portion of the article, with attribution, on his Canvas course site, asking his 30 students to read it and write a persuasive essay critiquing it. Has Ross violated copyright law? No, because the Copyright Act permits up to 50 copies of any published work. Yes, unless Ross obtained a license from the author to use it in his class. Yes, because Ross infringed the author's reproduction and distribution rights. No, because the fair use doctrine likely protects an educational use of the copyrighted work