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: 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: The Dawn spacecraft has captured amazing new images of the mystery bright spots on the dwarf planet Ceres, which continue to baffle scientists. In particular, the images show the brightest spot and its companion standing out against the darker surroundings. But experts are still at a loss to explain the composition and source of the bright spots. Scroll down for video Nasa scientists in California have revealed new images of the dwarf planet Ceres. They reveal new views of the two brightest spots in a crater (shown). However, scientists are still not able to explain what they are. Dawn will begin its first science orbit around Ceres on 23 AprilNasa scientists in California reveal new images of dwarf planet CeresThey show new views of the two brightest spots in a craterHowever, scientists are still not able to explain what they areDawn will begin its first science orbit around Ceres on 23 April 
 Questions:‘The approach imaging campaign has completed successfully by giving us a preliminary, tantalising view of the world _ is about to start exploring in detail. (A) Dawn (B) Ceres (C) Nasa (D) California
Example Output: (A)

Example Input: Standing between Andy Murray and his first grass court final since Wimbledon on Saturday is Viktor Troicki, and there will not be too much love lost. The Serbian was banned for refusing a drugs test in 2013 after losing a match in Monte Carlo, something which led Murray, who has been outspoken on the whole subject, to publicly label him ‘unprofessional’. Now they will meet in the semi-finals of the Aegon Championships after Murray, supported courtside at Queen’s Club by Jose Mourinho, saw off the big-serving challenge of Luxembourg left-hander Gilles Muller 3-6, 7-6, 6-4. Scroll down to video SINGLES SEMI-FINALSGilles Muller shocked Andy Murray by winning the first set 6-3Murray fought back to secure a place in Saturday's semi-finalsThe Scot will face Serbian Viktor Troicki, who beat John IsnerChelsea boss Jose Mourinho was in attendance at the Queen's Club 
 Questions:_ has always protested his innocence after being banned for 18 months and cited a paranoia about needles, his punishment later truncated to a year. (A) Andy Murray (B) Wimbledon (C) Viktor Troicki (D) Serbian (E) Monte Carlo (F) Murray (G) Aegon Championships (H) Jose Mourinho (I) Luxembourg (J) Gilles Muller (K) SEMI (L) Scot (M) John Isner (N) Chelsea (O) Queen's Club
Example Output:
(C)