What was the Silk Rod and why was it so important to China?

this is your answer here you go

Explanation:

The Silk Road was important because it helped to generate trade and commerce between a number of different kingdoms and empires. This helped for ideas, culture, inventions, and unique products to spread across much of the settled world.

a big wall across the mexican border so no drugs, terrorist, or illegal immigrants can come through : )    

i think the answer is   b.