A likely explanation would be that there was not enough food available for the entire growing civilization at the time, and that the people of the civilzation moved around and were eventually dissolved into different cultures,
<span>In the 18th century, Prussian ruler Frederick the Great emphasized military power to become an absolute monarch while also accomplishing doubling Prussia's size. Additionally, because he allowed freedom of religion, Frederick the Great is also known as an Enlightened Absolutist.</span>
The answer is C. Hope that helped!
It would be the "c. Taklamakan" that was one of the most dangerous spots along the silk roads, since this area was both physically treacherous and lined with thieves