When it comes to parenthetical citations, I am going to assume that you are using MLA guidelines. If so, it is only necessary to cite the author's last name, followed by the page number, with no parentheses between them. The last choice is the only one that just gives the last name, so it is correct.
Hello! I'm a high school honors English student! I'd be happy to try to help you out with your school work! I have quite a bit of answers in the English area on this site, you can go look if you want!
