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]: (CNN) The cavalry is coming! Not exactly, but the sentiment of reassurance is the same. This week, US Defense Secretary James Mattis arrives in Asia to visit South Korea and Japan. Two stalwart US allies, policymakers in both capitals have nevertheless been shaken by statements Donald Trump made while campaigning for President. None of these was more dramatic than the suggestion that these allies should pay more for US troops or risk having these forces withdrawn. Statements like this played to the worst fears in Seoul and Tokyo that the United States might no longer be a committed ally. It is now Mattis' job to reassure them of US commitments and return the trajectory of alliance relations back to pre-2016 presidential campaign rhetoric.Jeffrey Hornung: Japan, South Korea were shaken by statements Donald Trump made while campaigningWashington's alliances with Seoul and Tokyo will be critical in managing challenges posed by China and North Korea, he says 
 Question:Given the severity of the _ threat, it is crucial they hammer out any possible differences that may have arisen since Trump became president.
[A]: North Korea


[Q]: Rohit Sharma hit his maiden World Cup century as India claimed a clinical 109 run victory over Bangladesh in the second quarter-final here on Thursday. It was the reigning World Cup champions’ 11th consecutive victory in a World Cup, second best only to Australia’s run of 25 matches between 2003-2011, as MS Dhoni won his 100th one-day international match as captain. Featuring in their first ever World Cup knockout match Bangladesh promised much early on as they restricted India to 125-3 from 30 overs but fell away under the pressure of the occasion, though there was an element of controversy.Rohit Sharma scored 137 from 126 balls as India posted a total of 302Suresh Raina was second top scorer for India in the first innings with 65Bangladesh were bowled out 109 runs short at the MCGMS Dhoni's side won all six of their group matches on way to last eightBangladesh finished fourth in Group A after sending England packingDefending champions now meet Australia or Pakistan in the semi-finalsCLICK HERE for all the latest news from the Cricket World Cup 
 Question:_'s Suresh Raina goes aerial for a six in his innings of 65, India's second highest score.
[A]: India


[Q]: Jack Dorsey would have to give up his post at Square if he wants to become permanent CEO of Twitter. The company he helped found and now leads on an interim basis said Monday that it is only considering candidates who can make a 'full-time commitment to Twitter.' Dorsey was named interim CEO after Dick Costolo stepped down effective July 1 amid criticism over Twitter's disappointing financial performance and share price decline. Costolo had been Twitter's CEO for five years and led the company through a successful stock market debut in 2013. But Twitter has yet to make a profit and there are concerns about its ability to grow its user base.Costolo stepping down from his role beginning July 1Costolo faced controversies over online abuse and user numbersBoard only considering candidates who can make 'full-time commitment' 
 Question:'He has a profound understanding of the product and _'s mission in the world as well as a great relationship with Twitter's leadership team.'
[A]:
Twitter