Westerners Might Have Had More Success in Opening China to Trade

Westerners might have had more success in opening China to trade if

A) the Jesuit missionaries had not worked so hard at converting the peasants.
B) the Portuguese had not offended Chinese sensibilities so much that they were temporarily expelled from the country.
C) the Portuguese and the Dutch had not jockeyed so hard for a favorable trade position when they arrived in China.
D) missionaries had not inadvertently brought several deadly diseases with them.
E) they had not tried to force Western scientific ideas on the Chinese.