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: (CNN) The sooner babies get their own rooms, the longer they'll sleep on average, according to a new study that breaks with the recommendations of the American Academy of Pediatrics. Analyzing surveys from 230 first-time mothers at Penn State, Dr. Ian Paul, a pediatrician, found that babies slept for longer stretches if they didn't sleep in the same bedroom as their parents. At 4 months, babies who slept alone had the longest stretches of uninterrupted sleep -- by about 45 minutes, on average -- though they slept about the same amount of time as babies who slept in their parents' rooms.Babies who slept in their parents' rooms slept for shorter periods, a new study findsA leading pediatrics group recommends room-sharing with infants until 1 year 
 Questions:The _ sample was also "not terribly diverse in terms of socioeconomic or racial diversity," which could cast doubts upon how much this research speaks for the general population, Moon said. (A) CNN (B) American Academy of Pediatrics (C) Penn State (D) Ian Paul
Example Output: (C)

Example Input: (CNN) Iranian President Hassan Rouhani was sworn in for a second term Saturday in front of more than 100 foreign dignitaries as he accused the United States of undermining the 2015 nuclear agreement between Iran and the major world powers. Rouhani was a key architect of the 2015 nuclear agreement with the United States, the European Union and other partners, known officially as the Joint Comprehensive Plan of Action. The deal led to the lifting of most international sanctions against Iran in return for curbs on its nuclear program. "The actions of the US regarding the implementation show that the US can't be trusted," Rouhani said. "The world should know that any abrogation pertaining to the agreement would face the unanimous reaction of the nation and the government of Iran.""The US can't be trusted," Iranian President Hassan Rouhani saysIran urges European Union not to side with Donald Trump 
 Questions:EU foreign policy chief Federica Mogherini was among the attendees at Saturday's ceremony in _. (A) Iranian (B) Hassan Rouhani (C) United States (D) Rouhani (E) European Union (F) Joint Comprehensive Plan of Action (G) US (H) Donald Trump
Example Output: (A)

Example Input: Baghdad, Iraq (CNN) -- A suicide bomber wearing an explosives-packed vest attacked a police recruitment center in northern Iraq Tuesday, a bloody strike that killed at least 65 people and wounded 160 others. The attacker -- who blew himself up when he was among hundreds of recruits -- staged the assault at a checkpoint where people usually wait their turn to enter the center. The explosion caused a fire at a fuel station nearby, police in Tikrit said, and most of those killed and wounded were young men who came to join police forces. Tikrit's general hospital was overwhelmed with wounded people, some of whom had to be sent to hospitals in nearby towns of the Salaheddin province and to other locations, such as Irbil and Kirkuk.Police say the attacker targeted police recruitsTikrit is nearly 100 miles north of BaghdadRecruitment centers have been frequently attacked 
 Questions:Mosques urged _ residents to donate blood for the wounded. (A) Baghdad (B) Iraq (C) CNN (D) Tikrit (E) Salaheddin (F) Irbil (G) Kirkuk
Example Output:
(D)