The best and most correct answer among the choices provided by your question is the first choice or letter A. Promotion of trade throughout Asia was one of the policies implemented by Genghis Khan.
<span>Genghis Khan, born Temüjin, was the founder and Great Khan of the Mongol Empire, which became the largest contiguous empire in history after his death.</span>
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Northern states who could use the lands to create colleges for all United States citizens are the ones who benefited the most from the Morrill Land Grant of 1862.