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.

Q: (CNN) Though many individuals likely contributed to the President's decision to fire FBI Director James Comey, one notable one may have been Roger Stone, a 64-year-old close friend of Donald Trump and central figure in the FBI investigation into Trump campaign ties to Russia. In the middle of the Watergate scandal, Stone, who engaged in dirty tricks during Richard Nixon's 1972 campaign, was discovered to have hired a Republican operative to infiltrate the George McGovern campaign and was subsequently fired from his job. After the President's resignation, Stone remained an ardent Nixon apologist and loyalist. He even had the man's face tattooed on his back and devoted his life to ruthless, anything-goes politics (or political consulting, as you may know it). Stone's motto was and continues to be: "Admit nothing, deny everything, launch counterattack." And anyone who has watched Trump closely over the years would think it was his personal slogan, too.Michael D'Antonio: Roger Stone has undoubtedly influenced President Trump's decision to fire James ComeyAs an old friend and political adviser, Stone has taught Trump be ruthless -- particularly when protecting himself from attackTherefore Comey, who was leading the investigation into Trump campaign ties to Russia, had to be taken out, writes D'Antonio 
 Questions:Stone was introduced to _ in the 1980s by the notorious Roy Cohn. (A) CNN (B) FBI (C) James Comey (D) Roger Stone (E) Donald Trump (F) Russia (G) Watergate (H) Stone (I) Richard Nixon (J) Republican (K) George McGovern (L) Nixon (M) Michael D'Antonio (N) Comey (O) D'Antonio

A: (E)
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Q: DENVER, Colorado (CNN) -- Sen. Barack Obama laid out his plan for change in America as he accepted the Democratic presidential nomination Thursday night, securing his place in history as the first African-American to lead a major party ticket. Sen. Barack Obama accepted his party's nomination for the presidency Thursday night. "Change happens because the American people demand it -- because they rise up and insist on new ideas and new leadership, a new politics for a new time. America, this is one of those moments," he told supporters at the Democratic National Convention. "I believe that as hard as it will be, the change we need is coming."Barack Obama pits himself against John McCainObama lays out roadmap for improving the economyTens of thousands pile into Invesco Field to watch the speechAl Gore urges Americans to vote for change; vote for Obama 
 Questions:He wrapped up his speech by telling the crowd, "_, we cannot turn back. (A) DENVER (B) Colorado (C) CNN (D) Barack Obama (E) America (F) Democratic (G) Change (H) Democratic National Convention (I) John McCain (J) Obama (K) Invesco Field (L) Al Gore

A: (E)
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Q: Manuel Pellegrini has admitted he is disappointed in Yaya Toure but vowed to back the Manchester City midfielder — at least until the end of the season. Sportsmail revealed City would listen to offers for the Ivorian as they look to overhaul an ageing squad at the end of a faltering campaign. Toure is determined not to be forced out but the Chilean, speaking ahead of Sunday's visit of West Ham, acknowledged the midfielder had underperformed and dismissed claims he should be given a rest. Manchester City midfielder Yaya Toure has come in for criticism for his performances this seasonSportsmail revealed Manchester City would listen to offers for Yaya ToureManuel Pellegrini admitted he was not happy about Toure's performancesBut the City boss has vowed to support him until the end of the seasonManchester City face West Ham at Upton Park on SundaySam Allardyce has warned Aaron Cresswell about joining Manchester City 
 Questions:But _, who faces questions over his own future, said the 31-year-old would be backed. (A) Manuel Pellegrini (B) Yaya Toure (C) Manchester City (D) Sportsmail (E) City (F) Ivorian (G) Toure (H) Chilean (I) West Ham (J) Upton Park (K) Sam Allardyce (L) Aaron Cresswell

A:
(A)
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