<span>Open Door Policy (1899/1900) is declaration of principles introduced by the United States (1899, 1900) for the defense of equal freedoms amid nation’s transaction with China and in provision of Chinese regional and directorial honesty. So the answer is E. </span>
Just do your usual studying and pace yourself.
the correct option is A&B
<span>Denmark
was preparing to join forces with Norway against common enemies. Denmark was on military alert to ward off a Norwegian attack. This is what characterized the two nations from where the Vikings came from.
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