I would say it is B, “The North Koreans are proud of how they are using the book.”
The reason why I say this is because the question is asking you to “draw conclusions” in other words, summarize.
It cannot be A because the excerpt those not mention the Dutch’s reaction to the North Koreans use of the book. Whilst C is talking to you about how Americans ‘should feel’, completely ignoring what the passage was about- Dutch and N.K. D is telling you that they are allowing more people into North Korea, however that statement contradicts the passage since it is clearly stating that the Western reporters are rarely let in.
B would be the only that makes sense since they are willingly letting in the Dutch, since the Dutch is claiming that they want to see how he/they are using “The Diary if Anne Frank,” first of all, if you feel as if to hide something- especially in a place a communist as North Korea, you will not let anyone in unless you feel proud of what you are showing to the public.
" The Published Writings of Herbert Hoover ." Accessed Jan. 9, 2020. Herbert Hoover. " American Individualism ," Hoover Institution Press, 2016. George H. Nash. " Freedom Betrayed: Herbert Hoover's Secret History of the Second World War and Its Aftermath ," Hoover Institution Press, 2011.