Definition: 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].
Input: (CNN) It took two years after Kim Jong Un's rise to power in 2011 for a single world leader to visit North Korea. Mongolia's President Tsakhiagiin Elbegdorj was the first foreign head of state to visit Kim in late 2013. His country is one of the few that have anything more than a basic diplomatic relationship with the rogue state -- it personally passed messages to the US from North Korea in 2009, according to leaked documents released by WikiLeaks. But even then, Kim didn't meet with him, John Delury, associate professor at Yonsei University Graduate School, told CNN, citing reports at the time.A few countries, like China and Mongolia, have links to North KoreaBut in general, the rogue state isn't really close to anyone, experts say 
 Question:"They depend on _ but that doesn't mean they like China or want to deal with them ...

China