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]: Washington (CNN) North Korea might not be able to reach the U.S. mainland with a nuclear weapon yet, but the political fallout from its claimed hydrogen bomb test is here already. Even before the shockwaves of the 5.1 temblor triggered by Tuesday's test wore off, Hillary Clinton was fighting off a volley of Republican attacks, GOP presidential candidates were talking tough and Donald Trump jumped on a chance to chastise China. The episode was a fresh indication of the challenge that Clinton faces in running for the White House on her record as secretary of state, which makes it impossible for her to escape deficiencies in President Barack Obama's national security legacy.The episode is a fresh indication of the challenge that Clinton faces in running for the White House on her record as secretary of stateWashington has tried punishment and inducements repeatedly with North Korea and has failed to change its calculations 
 Question:He then toughened his stance by including _ in his "axis of evil."
[EX A]: North Korea

[EX Q]: Trains crossing snowfields, winding through meadows, passing by mountains, by day and night, through winter and summer. These stunning images are the work of one photographer in his quest to capture the incredible beauty of China's railway lines. Wang Wei, 25, has travelled more than 185,000 miles over the past 10 years and taken more than 300,000 photographs across the country, reported the People's Daily Online. Now, some of the photographs will feature in a new book called Running After Trains, to be published in July. The freelance photographer tells MailOnline his new book will focus on the photography techniques for shooting trains, and he hopes his photos can show the beauty of Chinese railways to more people.Wang Wei, 25, has travelled more than 185,000 miles over past 10 years and taken more than 300,000 photographsHis obsession with trains began aged 11 when he stole his parents' camera and went down to the railway trackHe spends five months travelling every year, and has been everywhere from Gobi desert to the Russian borderSome of the photographs will feature in Wang's new book Running After Trains, due to be published in JulyChina's vast railway network is 75,000 miles long - the second largest in the world behind the United States 
 Question:'The authorities don't promote _ trains and railways often enough, but they are so beautiful and they belong to every one in China,' says Wang.
[EX A]: China

[EX Q]: Taipei, Taiwan (CNN) Eclipsed for years by a rising China, Taiwan is standing taller after a thrilling and historic exercise in democracy. In a landslide win January 16, Tsai Ing-wen became Taiwan's first female president. Known as "Dr. Tsai" after completing a doctorate at the London School of Economics, she's also the first woman in Asia to be elected head of state without being part of a political legacy. While Tsai is known for her steely calm and understated manner, Freddy Lim is famous for his over-the-top stage antics as the frontman for Chthonic, one of Asia's leading black-metal bands.Taiwan's colorful democracy stands in sharp contrast to one-party ChinaIsland has just elected first female president, Tsai Ing-wenChina and Taiwan are divided by decades of tension after separating in 1949. 
 Question:"Even if _ does not have official diplomatic ties with those countries, a lot more can and should be done to revitalize Taiwan's economy."
[EX A]:
Taiwan

