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].

[EX Q]: Archaeologists say they have unearthed the oldest human footprints ever found in North America. The impressions were discovered buried at a shoreline at an archaeological dig site on Calvert Island, British Columbia in Canada. Charcoal in the prints has been radiocarbon dated, giving them an age of 13,200 years old. The finding was made by the Hakai Institute and the University of Victoria, both in British Columbia. Archaeologists Dr Daryl Fedje and Dr Duncan McLaren excavated an area below the high tide line, and found dozens of human footprints that had remained intact in clay. An ancient skeleton found nearly 20 years ago in a river in Washington is related to Native Americans, says a DNA study that could help resolve a long-running dispute over its ancestry.Human footprints were found preserved on Calvert Island in CanadaThey were radiocarbon dated to a remarkable 13,200 years oldIf confirmed they would be the oldest human footprints in North AmericaDiscovery also suggests people once migrated down the coast 
 Question:'There's no way to get to _ other than watercraft, and that applies to 13,000 years ago as it does today,' Dr McLaren said.
[EX A]: Calvert Island

[EX Q]: (CNN) Mitt Romney has added his voice to the chorus of Republicans who are dismayed that an ignorant demagogue such as Donald Trump could be poised to capture the presidential nomination of their grand and noble party. In a speech Thursday morning, Romney said, "Donald Trump is a phony, a fraud. His promises are as worthless as a degree from Trump University." He laid out a comprehensive case for why Republicans should reject Trump and pick one of the other candidates still in the race. But before we start lauding Romney for being a statesmanlike voice of reason and moderation, it's worth remembering a few things about him.Paul Waldman: Romney, GOP have used same ugly tactics as Trump, only with more politesseHe says Romney's 2012 campaign used racial code words, bullying mightTrumpism is GOP conservatism stripped of its veneer of subtlety, Waldman says 
 Question:That's because _ says, "I'm going to make our military so big, so powerful, so strong, that nobody, absolutely nobody, is going to mess with us."
[EX A]: Donald Trump

[EX Q]: Joost van der Westhuizen was given between two and five years to live when he was diagnosed with motor neurone disease - that was more than four years ago. On Wednesday, frail and fragile but as alert as ever, he achieved a dream of joining his team-mates from South Africa's 1995 World Cup final victory to mark the 20th anniversary of their achievement. It was a win that immortalised them all in the annals of history, but Van der Westhuizen more than most. He provided the wily pass that led to Joel Stransky's match-winning field goal in extra-time that gave the Springboks the first World Cup they were allowed to compete for after Apartheid saw them shut off from the global sporting community.Joost van der Westhuizen is battling with motor neurone diseaseFormer scrum-half was key man in South Africa's 1995 World Cup winHe attended the 20th anniversary of his country's great victory in a wheelchair and looking frailFormer No 9 continues to fight to help fund the finding of a cure for MND 
 Question:Rather than be downbeat, he’s taking on _ head-on, much like a Lomu tackle.
[EX A]:
MND