The Spanish Civil War (1931-1939) was important in the larger context of world history because A)
communist forces took over another country.
B)
when the fighting ended democracy proved successful.
Adolf Hitler gained a valuable "military ally' in Spain.
D)
the fighting there served as a dress rehearsal" for World War II.

I believe the answer is B because the Spanish Republic was replaced by a facsist dictatorship, Hitler himself was a dictator.

(d) rivers.

explanation:

civilizations developed around rivers because their waters provided places to hunt and fish. also, as the rivers flooded, the lands around them became fertile. this allowed them to support farming. this is especially true of the nile river, which flooded the same time each year.

american troops were forced to withdraw following deadly bombings.

explanation: