Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN) -- The small, black-and-white newspaper ad offered a discount: Nine holes of golf for $9.11 -- on September 11. The management of a Wisconsin golf course said the idea was to remember the victims of the September 11, 2001, attacks, but the ad turned into a public relations disaster on social media. By Tuesday, TumbleDown Trails Golf Course was reporting death threats. The golf course in Verona, Wisconsin, placed an advertisement in Monday's Wisconsin State Journal offering to "commemorate" the 12th anniversary of the terror attacks with "9 holes with cart for only $9.11 per person or 18 holes with cart for only $19.11!"Social media erupts after course offers discount to "commemorate" terror attacksOffer: $9.11 for nine holes, $19.11 for 18 holesManagement apologizes on Facebook, reports death threatsCourse may be closed on Wednesday due to security concerns 
 Question:By Tuesday afternoon, many _ commenters were defending the course.

Facebook