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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Question: 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.

Answer: Calvert Island


Question: Washington (CNN) It wasn't Donald Trump's day. June 9, 2016 -- the day that Donald Trump Jr., Jared Kushner and then-campaign chairman Paul Manafort met with a Russian lawyer to get opposition research on Hillary Clinton -- was a 24-hour period that the businessman-turned-presidential candidate likely hated: The spotlight wasn't on him. But more than a year after that unseasonably cool Thursday in New York, what happened on June 9 has intensified the spotlight on Trump -- now president -- and his family. News of the meeting between Natalia Veselnitskaya, billed in an email as a "Russian government attorney" and three of Trump's top campaign aides has rocked the Trump White House and led Clinton's vice presidential candidate, Sen. Tim Kaine, to speculate whether Trump Jr.'s behavior amounts to treason.June marked the unofficial start of the general electionThe meeting was scheduled for 4:00 p.m. in Donald Trump Jr.'s office 
 Question:Clinton, in her most retweeted tweet of the entire campaign, responded to _: "Delete your account," she wrote.

Answer: Donald Trump


Question: (CNN) Jennifer Allison didn't know how long her baby might survive after being born. When she was 20 weeks pregnant, the doctor told her that her daughter, Sky, would be born with heterotaxy, a series of defects affecting the heart, intestines, spleen and other organs. They gave the baby a 15-20% chance of surviving her first year and warned Allison that even if her daughter made it through that, she may not survive the toddler years. Allison, a nurse and mother of two other young children, decided to "carry Sky as far as she wanted to go." She reached out to documentary photographer Ash Adams, aware of her documentary body of work on birth in Alaska. Allison didn't know how much time she'd have with Sky and thought she'd like to have something documented of what time she did have with her. She told Adams that she wanted Sky's birth story to be shared and be a part of something bigger.Jennifer Allison's daughter, Sky, was given a 15-20% chance of surviving her first yearPhotographer Ash Adams has documented the family's struggle through 19 months 
 Question:Adams followed the team down the hall, wondering if _ had survived the birth.

Answer:
Sky