Answer:
The Supremacy Clause of the Constitution of the United States establishes that the Constitution, federal laws made pursuant to it, and treaties made under its authority, constitute the "supreme Law of the Land", and thus take priority over any conflicting state laws.
Explanation:
B because this was the most unesscary thing EVER
Himalaya's: Isolated China.and gave protection, and water, and minerals.
Trading : As far as I know from when the silk road started ( but this could be wrong)
<em>POPULAR EXPORTS : </em> Jade, Silk, Paper, Porcelain.
<em>Popular Imports : </em>Spices, Glass, AND ALSO : Buddhism ( from india)
To keep people from breaking rules and to keep our world in a good place