The correct answer to this open question is the following.
You forgot to include the options for this question. However, we can say the following.
This excerpt from John Hay's Circular Letter became part of the "Open Door policy."
Yes, it is true that Jhon Hay, Secretary of State in the United States government created the idea of the open door policy for China at the beginning of the 1900s. What was the goal of the US government? To secure a favorable position to trade with China, offering the government of China the kind of respect for their history, traditions, and territory. So it was the first official agreement the United States wrote to became the international trade policy with Asian countries.
<span>"C. Private firms cut canals at key points and connected
rivers" and "D. Thanks to a web of waterways, boats could reach towns they
had never been able to reach before" are both correct, although roads were beginning to be used more as well. </span>
