Question

what effect did john hay's open door policy letters have on the imperial powers of britain france germany russia and japan?
A:it provoked the imperial powers to declare war on the United States
B:it caused the imperial powers to restrict trade in their trade with China
C:it warned the imperial powers that the united states would soon declare war in China
D:it signaled to those powers that the united states would take a larger role in the world affairs than before

Answer 1

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