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. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].

Q: Ottawa, Canada (CNN) What's going on with Justin Trudeau? Since his surprising election last October, Trudeau has enjoyed soaring popularity as the young, hip, progressive Prime Minister of Canada. Blessed with charm, good looks, a name and a photogenic family, he has become an overnight international celebrity. Promising "sunny ways" after a decade of the divisive politics of Stephen Harper and his Conservatives, Trudeau and his Liberals have proclaimed a new tone of civility in Parliament in their seven months in office. But all that dissolved on the floor of the House of Commons Wednesday in a fracas both unseemly and unprecedented. At the center was a less saintly Trudeau: petulant, impatient and later, embarrassed and "unreservedly" apologetic.Andrew Cohen: Canadian Prime Minister involved in a parliament fracas that has some questioning his maturity for jobCohen: He apologized, but popular PM has lost his shine; has learned early lesson on governing, discipline, the scrutiny of celebrity 
 Question:"I apologize to my colleagues, to the _ as a whole and to you, Mr. Speaker, for failing to live up to a higher standard of behavior," he said Thursday.

A: House of Commons
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Q: Washington (CNN) The advertised purpose of President Barack Obama's pre-vacation news conference Thursday was to highlight gains in the war against ISIS in Iraq and Syria with the Pentagon as a backdrop. But for all his talk of terrorism, Russia and other geopolitical challenges, the underlying argument he wanted to make was clear: it's a serious business being commander-in-chief and the Republican who wants his job isn't fit for the Oval Office. Obama ridiculed Donald Trump's recent suggestion that the election system could be rigged, called on the candidate to act like a president since he's soon to be briefed on confidential information and implied that he didn't believe the billionaire businessman could be trusted with America's nuclear codes.Obama hit out at Trump just two days after branding him unfit to be commander in chiefTrump and Clinton are expected to soon start getting classified intelligence briefings 
 Question:Obama pointed to many such challenges in Thursday's _ news conference, particularly the fight against ISIS, also known as ISIL.

A: Pentagon
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Q: Archaeologists have uncovered the complete skeleton of a 17th-century camel that was likely used in the second Ottoman-Habsburg war. They believe the camel - the first intact camel skeleton found in central Europe - may have been left in the town of Tulln for trading after the siege of Vienna in 1683. In a country where cows dominate the rural landscape, the discovery in an Austrian cellar shocked scientists. The researchers described it as a 'sunken ship in the desert'. Archaeologists have uncovered the complete skeleton of an 'alien' 17th-century camel that was likely used in the second Ottoman-Habsburg war. They believe the camel - the first intact camel skeleton found in central Europe - may have been left in the town of Tulln for trading after the siege of Vienna in 1683Scientists say camel was left in Tulln after the 1683 siege of ViennaIt would have shocked residents as camels were an alien species'They didn't know what to feed it or whether one could eat it,' study saidOttoman army used camels for transportation and as riding animals 
 Question:Genetic analysis of the beast show that it was a Bactrian-dromedary hybrid – a breed popular in the _ army at the time.

A:
Ottoman
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