John Student writes a scathing review on

www$.$ratemyprofessors.com, stating that "Professor Smith is an absolutely horrible teacher." In the opinions of most, John's statement is untrue. Indeed, Professor Smith has received the highest possible teaching evaluations during his $10$ years in teaching and has won Professor of the Year awards on six occasions. Just last year, he received national recognition, based on his innovations in teaching and his teaching evaluations from both students and peers, as one of the best Business Law professors in the country. On these facts, can Professor Smith successfully sue John Student for defamation for his ratemyprofessor posting?

a$.$ No$,$ because it is impossible to definitively prove John's statement was false.

b$.$ No$,$ because John's review is merely his own opinion, rather than a statement of fact.

c$.$ No$,$ because Professor Smith cannot prove he was injured by John's statement due to Professor Smith's stellar reputation.

$$ d$.$ Yes, because all of the elements of defamation are met.