Read the following excerpt from a reference list.

Crum, M. (2013, September 22). 7 reasons your favorite books were banned. ____________________

According to APA style, what citation element belongs in the blank?

A. Huffington Post
B. by Jonathan Silver
C. http://www.huffingtonpost.com/2013/09/22/banned-books_n_3961834.html
D. edited by the American Civil Liberties Union