I would have to say C. Though take that answer with a grain of salt.
Casualties, Wartime labor, invasion, economic depression.
Zheng He<span> was the eunuch admiral who led Yongle's expeditions, </span>zheng he was a muslim<span>, throughout his </span>travels<span>, </span>zheng he<span> gave gifts of chinese silk, porcelain, etc. to ...</span>
A. because it was a time when the war was happening and there was propaganda.