instruction:
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.
question:
Washington (CNN) -- President Barack Obama used a Memorial Day ceremony to say it is time for America to properly welcome home Vietnam veterans and show them and their families the respect and gratitude they deserved but didn't receive decades ago. "You came home and sometimes were denigrated when you should have been celebrated," Obama said beneath a scorching sun at the Vietnam Veterans Memorial. "It was a national shame, a disgrace that should have never happened. That's why here today, we resolve that it will not happen again." The event, which launched a 13-year Vietnam War 50th anniversary commemoration, was the culmination of a day of somber events on the annual holiday honoring America's war dead.NEW: President Obama calls the denigration of Vietnam veterans a "national shame""America will be there for you," Obama tells veterans and their familiesMemorial Day launches a 13-year commemoration of the Vietnam War's 50th anniversaryObama lays a wreath to the fallen at Arlington National Cemetery 
 Questions:"We choose that course in _ not so that we win wars but so we can prevent wars, because a strong America is the best deterrent to war there ever has been invented," Romney said. (A) Washington (B) CNN (C) Barack Obama (D) Memorial Day (E) America (F) Vietnam (G) Obama (H) Vietnam Veterans Memorial (I) Vietnam War (J) Arlington National Cemetery
answer:
(E)


question:
Washington (CNN) Federal investigators exploring whether Donald Trump's campaign colluded with Russian spies have seized on Trump and his associates' financial ties to Russia as one of the most fertile avenues for moving their probe forward, according to people familiar with the investigation. The web of financial ties could offer a more concrete path toward potential prosecution than the broader and murkier questions of collusion in the 2016 campaign, these sources said. One year after the FBI opened an investigation, the probe is now managed by special counsel Robert Mueller. Sources described an investigation that has widened to focus on possible financial crimes, some unconnected to the 2016 elections, alongside the ongoing scrutiny of possible illegal coordination with Russian spy agencies and alleged attempts by President Donald Trump and others to obstruct the FBI investigation. Even investigative leads that have nothing to do with Russia but involve Trump associates are being referred to the special counsel to encourage subjects of the investigation to cooperate, according to two law enforcement sources.Sources described an investigation that has widened to focus on possible financial crimesThe increased financial focus hasn't gone unnoticed by President Donald Trump 
 Questions:Trump has denied any collusion and maintains that his business empire has "no involvement with _" and that he has "no loans, no nothing" from Russia. (A) Washington (B) CNN (C) Donald Trump (D) Russian (E) Trump (F) FBI (G) Robert Mueller
answer:
(D)


question:
(CNN) US swimmer Ryan Lochte told NBC's Matt Lauer it was his fault that a fabricated story about a robbery caused an international Olympics scandal. "I over-exaggerated that story and if I had never done that we wouldn't be in this mess," he said in a snippet of the interview aired on NBC on Saturday evening. "None of this would have happened," he added about the aftermath in which three of his fellow swimmers were questioned by Brazilian police and one was ordered to donate nearly $11,000 to a Brazilian charity. Lochte, 32 and a four-time Olympian, blamed his "immature behavior."Lochte spoke with NBC's Matt Lauer about incident at gas stationFurther disciplinary action is pendingUSA Swimming to undergo a thorough review of the incident 
 Questions:Bentz emphasized that he was never a suspect in the case and that _ law enforcement officials saw him only as a witness. (A) CNN (B) US (C) Ryan Lochte (D) NBC (E) Matt Lauer (F) Olympics (G) Brazilian (H) Lochte (I) Olympian (J) USA Swimming
answer:

(G)