Muhammad named his successor before died
I believe the answer is: C: The articles threatened national security
According to the national defense departement, publishing articles regarding Military tactics in vietnam war would potentially endanger the troops in vietnam. We cannot know if vietnam troops have any spies in national soil, so as a precaution, the articles is banned from being published.
I believe the correct answer is B. German territorial losses after World War I.
As you can see in the map, there are several areas that Germany lost, such as Poland, which became a new country, and an area that now belonged to France. The purple part represents what was left of Germany after WWI, which was still a large portion of Europe, but smaller than it was before the War.