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. Among the entities, try to find the best entity that is most likely to fill in "_" and classify the answers based on options.

Example Input: Google allows their users to control the types of advertisements they see across the web, based on gender, interests and age. But an alarming study has discovered that these settings can skew what people see to the point where discrimination against certain groups arises. During one experiment, researchers spotted that men were shown significantly more adverts for higher-paid, executive job sites than women. To test Google’s Ads Setting service, researchers led by Amit Datta from Carnegie Mellon University built a tool called AdFisher. It is an automated tool that explores how user behaviours, Google’s ads, and Ad Settings interact.Researchers edited gender and interests using Google’s Ads Setting toolThis tool controlled which adverts they were shown on selected sitesStudy found that females were shown fewer high-paid job adverts than menIn fact, the difference was substantial - 1,852 ads compared to just 318 
 Questions:_ showed adverts for a career coaching service for ‘$200k+’ executive positions 1,852 times to the male group but just 318 times to the female group. (A) Google (B) Amit Datta (C) Carnegie Mellon University (D) AdFisher (E) Ad Settings
Example Output: (A)

Example Input: Tampa, Florida (CNN) -- With Texas Gov. Rick Perry threatening to cement his standing atop the national polls, his rivals for the Republican presidential nomination aggressively sought to undermine his conservative credentials on Monday during the first-ever CNN/Tea Party debate in Florida. Perry repeatedly found himself in the crosshairs, as the field of candidates took turns attacking his positions on illegal immigration, Social Security, and his controversial 2007 push to vaccinate Texas schoolgirls against human papillomavirus, a common sexually transmitted disease that can lead to cervical cancer. Minnesota Rep. Michele Bachmann, whose standing among Republicans has slipped dramatically since Perry entered the race, said she was "offended" by Perry's executive order, which included an opt-out provision for parents who did not want the vaccine.NEW: Perry finds himself in the crosshairs as GOP candidates attack his positionsBachmann accuses Perry of helping a drug company through a vaccination orderRomney on Perry: Being dealt aces does not make a good poker playerPerry calls for Social Security reform but drops "Ponzi scheme" label 
 Questions:_ also said that the executive order was a mistake and he should have worked with the legislature instead of issuing it. (A) Tampa (B) Florida (C) CNN (D) Texas (E) Rick Perry (F) Republican (G) Tea Party (H) Social Security (I) Minnesota (J) Michele Bachmann (K) Republicans (L) GOP (M) Bachmann (N) Romney (O) Ponzi scheme
Example Output: (E)

Example Input: (CNN) -- Roger Federer dropped his serve just once during a two-hour battle with Andy Roddick at the Miami Masters, but it was enough to end the former world No. 1's 16-match winning streak. Federer, who has already clinched three titles in 2012, boasts a strong record against world No. 34 Roddick and has beaten the American in four major finals among his record 16 grand slam crowns. But Roddick, the U.S. Open champion in 2003, dug deep to record a 7-6 (7-4) 1-6 6-4 win -- only his third over the Swiss in 24 meetings and his second at the U.S. hard-court event.Roger Federer loses to Andy Roddick, ending a 16-match winning streakThe former world No. 1's serve broken just once in a two-hour match with American RoddickDefending champion Novak Djokovic through after beating Viktor TroickiU.S. No. 1 Mardy Fish into the last 16 after win over South Africa's Kevin Anderson 
 Questions:"It was kind of a game of chess," said _, also a former world No. (A) CNN (B) Roger Federer (C) Andy Roddick (D) Miami Masters (E) Federer (F) American Roddick (G) Novak Djokovic (H) Viktor Troicki (I) U.S. (J) Mardy Fish (K) South Africa (L) Kevin Anderson
Example Output:
(C)

