Final answer:
Option A is the correct citation for an article obtained from an online database. It follows the basic format for a journal article in a database.
Step-by-step explanation:
The correct citation for an article obtained from an online database is option A):
Block, Alex Ben. "The Real Force Behind Star Wars." Hollywood Reporter, vol. 418, no. 6, 2012, pp. 88-91. Business Source Complete, www.hollywoodreporter.com/news/george-lucas-star-wars-288513. Accessed 23 July 2016.
This citation follows the basic format for a journal article in a database. It includes the author's name, the title of the article, the title of the journal, the volume number, issue number, date of publication, page numbers, and the title of the database followed by the DOI or URL.