After observing how the European great powers had carved out "spheres of influence" in China, what action did US Secretary of State Hays propose?
A) the United States would blockade all Chinese ports if it was not given control of Hong
Kong
B) The United States would help the Boxers to overthrow foreign influence in China
C) The United States would help China to recover all of the lands taken by European
powers
D) The United States and other foreign nations should enjoy equal trading rights in China