A. After three months of war, a letter from home is worth a ton of gold, and chrysanthemums in poor hometown should bloom next to the battlefield (correct answer)
B. Although a country is divided, mountains and rivers remain forever, because birds disappear in space, and in spring, they return to green trees and grasslands and cross desolate green mountains.
C. after three months of war, a letter from home is worth a ton of gold. Birds are strange in the wild, and pedestrians are afraid of the sunset.
D. Although a country is divided and mountains and rivers last forever, a chrysanthemum turns green again in spring, and now it is in full bloom.