Read the paragraph from the section "A country full of mountains."
The mountains and deserts of the west limited contact between early Chinese dynasties and other civilizations. For thousands of years, there was virtually no contact. Eventually, traders moving along the Silk Road broke through the barriers. These were the first connections between China and the rest of Afro-Eurasia. The Silk Road allowed many ideas and inventions from East Asia to reach the West. Paper, printing, and gunpowder were invented in China. The Silk Road brought them to Europe. The effect there was enormous.
What is the term "Silk Road" referring to?
A
a trip taken by early Chinese dynasties to relax and learn
B
a trip through the desert to sell paper and gunpowder to China
C
a route through the mountains that allowed travel and trade
D
a route built and paid for by selling expensive items to Europe
