I would also say that D. to obtain identification cues and other information is the correct answer here.
When dogs investigate other dogs' feces and urine, they do that for the same reason why we might browse through a person's Facebook profile - they want to see what kind of a dog was there and to gather data on the canines who live in or pass through that area.
The mongols is history's biggest land contiguous empire that grew under the leadership of Khan,and was made of nomadic people. It sprung from eastern Europe and spread all the way to the far east.
The Mongolians were an exception because they perfected the mail system,protected the silk road, and left a legacy of unified political units such as Russia and China.
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Answer: President Thomas Jefferson hoped that the Embargo Act of 1807 would help the United States by demonstrating to Britain and France their dependence on American goods, convincing them to respect American neutrality and stop impressing American seamen. Instead, the act had a devastating effect on American trade.