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.

[EX Q]: West Des Moines, Iowa (CNN) Donald Trump had every reason to feel optimistic Monday. His poll numbers were up; he had secured two prominent endorsements in the space of a week; and even the weather seemed to be cooperating, with a snowstorm coming in from the west expected to hold off until after midnight. Sarah Palin endorses Donald Trump And then, he lost, coming in second to Ted Cruz. Trump spent January in full-on attack mode against Cruz. Trump questioned whether Cruz qualifies as a "natural-born citizen" eligible to serve as president. He went after the evangelical vote, winning the endorsement of Liberty University President Jerry Falwell, Jr., but didn't back up the appeals with a ground game. And then he sat out the final debate, opting for a rally across town at the same time.Donald Trump finished second in the Iowa caucuses on Monday nightHe sat out the final debate in Iowa and he acknowledged Tuesday that his plan might have backfired 
 Questions:With _'s win and Marco Rubio's much stronger-than-expected finish Monday night, Trump now urgently confronts the danger of the Florida senator chipping away at his establishment backing in upcoming contests. (A) West Des Moines (B) Iowa (C) CNN (D) Donald Trump (E) Sarah Palin (F) Ted Cruz (G) Trump (H) Liberty University (I) Jerry Falwell (J) Jr.
[EX A]: (F)

[EX Q]: A devastated Joe Biden closed his eyes and looked up for a brief moment on Thursday before leading his family behind the coffin of his eldest son, Beau Biden, who passed away this weekend following a battle with cancer. The Vice President leaned over to give words of comfort to his son's two young children and widow, Hallie. The VP's distraught wife, Dr Jill Biden, clung to her granddaughter Natalie, 11, while Biden took nine-year-old grandson Hunter's hand as the family followed Beau's casket into the Delaware state Capitol where his body would lie in honor. Joseph 'Beau' Biden III, the former Delaware Attorney General and an Iraq war veteran, died of brain cancer on Saturday at the age of 46.Beau Biden, who passed away from brain cancer on Saturday, was the eldest son of Vice President Joe BidenBeau, the former Delaware Attorney General and an Iraq war veteran, was 46 years old. He leaves his wife Hallie, daughter Natalie, 11, and nine-year-old son HunterHe was laid in honor in the Legislative Hall following a processional from Wilmington to Dover, DelawareDelaware Governor Jack Markell gave a tribute, saying 'Beau made Delaware a better place for us all', describing Biden as a dedicated public servant and a model husband and fatherA funeral Mass will be held at St Anthony of Padua church in Wilmington on Saturday where President Obama will deliver a eulogy 
 Questions:'Because of what Beau Biden did in this very building, the children of _ are safer for generations to come,' Markell said. (A) Joe Biden (B) Beau Biden (C) Hallie (D) VP (E) Jill Biden (F) Natalie (G) Biden (H) Hunter (I) Beau (J) Delaware (K) Capitol (L) Joseph 'Beau' Biden III (M) Iraq (N) Legislative Hall (O) Wilmington (P) Dover (Q) Jack Markell (R) St Anthony of Padua (S) Obama
[EX A]: (J)

[EX Q]: (CNN) US President Donald Trump has ordered the CIA to discontinue a program of arming and training anti-Assad rebels in Syria, according to a report in the Washington Post which cites unnamed US officials. The move is seen as controversial, given Russia's opposition to the rebels and Moscow's strong support for the regime of Syrian President Bashar al-Assad. "It's a strategic mistake.... (support for the rebels) was a pressure point on Assad and a pressure point on the Iranians... and the Russians," according to Bob Baer, CNN Intelligence and security analyst and former CIA operative. "It looks like, to me, that he just gave that as a gift to Vladimir Putin for no quid pro quo and that's not the way diplomacy works. We should've used this, we should've demanded, for example, safe zones so the Sunnis wouldn't get hit from the air... so this is just inexplicable, why he would do this.Kremlin says issue of US support for Syrian rebels didn't come up at Trump-Putin G20 meetingEnd of program wouldn't affect Pentagon's plans to support anti-ISIS rebel groups, report adds 
 Questions:_-funded weaponry started flowing to Syrian rebel groups the following year. (A) CNN (B) US (C) Donald Trump (D) CIA (E) Assad (F) Syria (G) Washington Post (H) Russia (I) Moscow (J) Syrian (K) Bashar al (L) Iranians (M) Russians (N) Bob Baer (O) CNN Intelligence (P) Vladimir Putin (Q) Sunnis (R) Kremlin (S) Putin (T) Pentagon (U) ISIS
[EX A]:
(D)