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].

Republican presidential frontrunner Donald Trump said it was not his job to stand up for U.S. President Barack Obama after a man at one of his campaign events said he was a Muslim and 'not even an American.' 'Am I morally obligated to defend the president every time somebody says something bad or controversial about him? I don't think so!' Trump said on Twitter on Saturday morning. Trump drew criticism on Friday from Republican and Democratic rivals in the 2016 race for the presidency when he failed to challenge a man at a New Hampshire town hall Thursday night who said Muslims were a problem in the United States.Donald Trump wrote on Twitter saying he's not morally obligated to defend President Obama every time someone makes controversial commentHe said if someone made a nasty comment about him to Obama there's 'no chance' the president would come to his rescueOn Thursday, Trump failed to correct a man at one of his campaign events who said Obama is a Muslim and 'not even an American' 
 Question:_'s campaign manager later said that Trump had had trouble hearing in the busy room.
Donald Trump

Daily Show host Jon Stewart took his life into his hands on Monday night when he entered the wrestling ring to spar with WWE star Seth Rollins. The feud had been simmering between the pair for the past two weeks after current Money In The Bank-title holder Rollins claimed that he could do a better job of hosting the Comedy Central show. Stewart then issued a challenge to Rollins via a cell phone clip before the two men briefly came face-to-face on The Daily Show itself last week when Rollins got Stewart in a headlock. Scroll down for videos Daily Show host Jon Stewart took his life into his hands on Monday night when he entered the wrestling ring to spar with WWE star Seth Rollins as their feud continuedDaily Show host Stewart took his life into his hands when he entered the wrestling ring to spar with WWE star Seth Rollins as their feud continuedA feud has been simmering after the Bank-title holder Rollins claimed that he could do a better job of hosting the Comedy Central showAs Rollins was about to hit Stewart, WrestleMania opponent Randy Orton interrupted proceedings and gave Stewart time to kick Rollins 
 Question:The pair’s beef started two weeks ago when _ had proudly boasted that he had aspirations beyond being 'the future of WWE'.
Seth Rollins

(CNN) Hurricane Harvey and its aftermath have dumped trillions of gallons of rain across Texas and Louisiana over six days. Homes, office buildings and other structures along the Gulf Coast and in Houston's Harris County, were flooded, their occupants forced to find higher ground. To reach safety, most local residents waded through the murky streams, in some cases for hours. Scientists, including Lane Voorhies, a senior environmental scientist at A&B Labs in Houston, expressed concern about what this water might contain. "The potential for contamination is everywhere," Voorhies told Elizabeth Cohen, CNN senior medical correspondent. In particular, he worried about the health effects among people who had spent time in the water, especially those who might have gotten cut while walking through the murky depths. People with underlying illnesses, pregnant women, the elderly and young children would also be more susceptible to illnesses resulting from contact with contaminated water.Coliform bacteria is present in the feces of all warm-blooded animals and humansE. coli is a bacteria that causes gastrointestinal symptoms when ingested 
 Question:Based on sampling he'd done during previous flooding events, Voorhies took three samples on Thursday of floodwaters from different locations in _, though all in close proximity.

Houston