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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].
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(CNN) -- Asiana Airlines Flight 214 was seconds away from landing when the passengers sensed something horribly amiss. The plane was approaching San Francisco International Airport under a beautifully clear sky, but it was flying low. Dangerously low. Benjamin Levy looked out the window from seat 30K and said he could see the water of the San Francisco Bay about 10 feet below. Even for an airport where landing strips run close to the water, the descent seemed alarming to the San Francisco man. "I don't see any runway, I just see water," Levy recalled. Further back in the Boeing 777, Xu Das had the same realization.Flight recorders have been found, the NTSB saysAsiana identifies the two 16-year-old girls killed in the crash182 people were hospitalized, while 123 were uninjuredPassengers say the plane's rear struck the edge of the runway 
 Question:Perhaps one of the reasons so many people survived Saturday's crash was because the _ is built so that everybody can get off the plane within 90 seconds, even if half the doors are inoperable.
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Boeing 777


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Washington (CNN) China has agreed to return the US underwater drone that it seized in international waters earlier this week, the Pentagon said Saturday. "We have registered our objection to China's unlawful seizure of a US unmanned underwater vehicle operating in international waters in the South China Sea. Through direct engagement with Chinese authorities, we have secured an understanding that the Chinese will return the UUV to the United States," Pentagon spokesman Peter Cook said in a statement. Details were not immediately available on when or how the drone may be returned. Earlier, China's Defense Ministry said authorities had decided to return it, but criticized the US for having "hyped up" the issue. President-elect Donald Trump weighed in on the incident, calling China's action "unprecedented."China said the US had "hyped up" the issueTrump called China's action "unprecedented" 
 Question:"Upon confirming that the device was a US underwater drone, the Chinese side decided to transfer it to the US side in an appropriate manner," Chinese _ spokesman Sr. Col. Yang Yujun said.
answer:
Defense Ministry


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Washington (CNN) Bill Clinton criticized President Barack Obama's signature policy reform Monday while on the stump for his wife, Democratic presidential nominee Hillary Clinton, calling Obamacare "the craziest thing in the world." But he attempted to temper his criticism at a Tuesday rally. Speaking at a Democratic rally in Flint, Michigan, the former president ripped into the Affordable Care Act (ACA) for flooding the health care insurance market and causing premiums to rise for middle-class Americans who do not qualify for subsidies. "So you've got this crazy system where all of a sudden 25 million more people have health care and then the people who are out there busting it, sometimes 60 hours a week, wind up with their premiums doubled and their coverage cut in half. It's the craziest thing in the world," Clinton said.Clinton said Obamacare had caused premiums to rise for Americans ineligible for subsidiesHe also touted his wife's proposal to allow people without access to subsidies to buy into Medicare and Medicaid 
 Question:And while he was slightly short-handed, it's clear to everyone, including President _, that improvements are needed," Urena said in a statement.
answer:

Barack Obama