Final answer:
The correctly formatted MLA works cited entry for a book with more than three authors is Entry B, which includes 'et al.' after the first author's name and other required details.
Step-by-step explanation:
The correct works cited entry for a book in print with more than three authors according to MLA (Modern Language Association) standards is Entry B: Harper, George, et al. The Economic Crisis. Chicago, Simon and Schuster, 2012. Print.
This entry adheres to the MLA guidelines for citing books with three or more authors by using the term 'et al.' after the first author's name, italicizing the book title, placing the publication city before the publisher's name, and including the year of publication. It also correctly includes 'Print' at the end of the citation to indicate the format of the book.