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: 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.

A: Donald Trump
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Q: (CNN) -- Martina Hingis and Anna Kournikova will team up again to play at this year's Wimbledon championships. The popular pair won the 1999 and 2002 Australian Open doubles titles, but will be returning the SW19 to play in the legends doubles event for players who are retired from the professional circuit, the management company Octagon said Tuesday. Swiss star Hingis won five grand slam singles crowns and nine in doubles during a glittering career which ended under a cloud in 2007, when she was suspended for two years for testing positive for cocaine at Wimbledon. The 29-year-old denied taking the drug, but did not appeal the ban, which ended last September, prompting speculation that she may attempt a return to the WTA circuit.Martina Hingis and Anna Kournikova to be re-united at Wimbledon this yearThe pair will play in the legends doubles event at SW19Hingis has ended a two-year ban after testing positive for cocaine at 2007 Wimbledon 
 Question:_ is a year younger, but has not played regularly on the main tour for seven years after being hit by a string of injuries.

A: Anna Kournikova
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Q: A holidaymaker who suffered agonising face, arm and leg injuries on one of the world's tallest water slides has now split with his partner as he no longer think he's attractive. Jamie Norman, 28, from Manchester, sustained the horrific scarring following an accident on the 60mph VertiGo slide in Aqualandia in Benidorm, Spain. The father-of-two and his partner, Vicki Holbrook, 30, thought the worst was over when they returned home to the UK after the incident – but the accident caused stress and rows and led to the couple separating. 'The accident itself was bad enough. Jamie was bleeding heavily and covered in injuries,' Vicki said. 'But after we got home, and his wounds healed, he just couldn't forget it.Jamie Norman suffered injuries on VertiGo slide in Aqualandia in BenidormThe 28-year-old plummeted down the 60mph slide into the waterEx-partner Vicki Holbrook, 30, said he is 'self conscious' about scars 
 Question:Recalling the troubling incident _ said: 'I could hear a funny clunking sound as the trap door opened and I realised in panic there was something wrong - but there was nothing I could do about it.

A:
Jamie Norman
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