Answer:
C. The decision to drop the atomic bomb was to end WWll quickly.
Explanation:
Stalin wanted this so that Germany would have to protect both borders and use less troops on the eastern front. Russia has no geographical borders so the Germans had no virtually no problem fighting the ruskies
Answer:
B. to keep invaders out
Explanation:
The wall was built to help keep out northern invaders like the Mongols. Smaller walls had been built over the years, but the first Emperor of China, Qin Shi Huang, decided that he wanted a single giant wall to protect his northern borders.