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: San Diego (CNN) Twenty-five years ago, Paula Claussen's friend invited her to make the short trip from her home in San Diego, California, across the border to Tijuana, Mexico, to donate clothing to people in need. Claussen didn't expect that day to change the course of her life. The drive took less than an hour, but when they arrived at their destination -- a shantytown on the outskirts of Tijuana -- Claussen couldn't believe her eyes. "I was shocked by the conditions that I saw down there," she said. Families with young children were living in ramshackle homes: The dirt floors turned to mud when it rained. The walls had gaps, allowing tarantulas, rattlesnakes and rats to invade. Many roofs were merely old tarps with holes in them.Paula Claussen visited Tijuana, Mexico, to donate clothing 25 years agoThe poverty she saw inspired her to come back and build better homes for residentsProject Mercy houses replace shacks that often have dirt floors and lack basic amenities 
 Question:The nonprofit has constructed more than 1,250 free homes for people living in _'s most desperate communities.

A: Tijuana
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Q: Washington (CNN) Donald Trump's top budget adviser defended the sweeping cuts proposed to social, foreign aid and environmental programs in the President's budget on Tuesday, arguing that the White House could no longer ask taxpayers for money to fund programs they believe to be inefficient. Economists and Democrats have already panned the budget as a document that benefits the wealthy and cuts services from the poor. Mick Mulvaney, Trump's budget chief, rejected that idea on Tuesday. "We are no longer going to measure compassion by the number of programs or the number of people on those programs, but the number of people we help get off of those programs," he said, arguing that it is actually compassionate to cut government spending on inefficient programs.Economists and Democrats have already panned the budget as a document that benefits the wealthyThe budget assumes that the American economy will begin growing at 3% each year 
 Question:Mulvaney said Tuesday that "sustained, 3% economic growth" is the foundation of _-enomics that everything the administration does is based on.

A: Donald Trump
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Q: Suspended hundreds of feet in the air amid glistening pillars of ice illuminated with ghostly lights from below, this could easily be a computer-generated scene from the latest sci-fi blockbuster movie. But in fact these ethereal photographs were taken in real life, and show extreme sportsman and climber Stephan Siegrist, 43, ascending the Voringsfossen icefall which is part of a gigantic glacier in Eidfjord, Norway. The stunning images were captured by fellow mountaineer and photographer Thomas Senf. While the 500ft frozen waterfall is regularly scaled by climbers during daylight, he said he wanted to capture the beauty of the falls by night.Stunning images captured by photographer Thomas Senf as climber Stephan Siegrist, 43, scaled frozen waterfallThe Voringsfossen fall is liquid for most of the year, but in winter freezes into a 500ft cliff favoured by climbersHundreds of adventurers attempt the climb by day, but very few attempt the ascent at night, as pictured here 
 Question:He captured these stunning images of Mr _ during a trip to Norway in 2012.

A:
Stephan Siegrist
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