what is one development during the Han and Tang dynasties that contributed to the increased population of southern China?

Question

1. silk
2. porcelain
3. junks
4. canal system
i think it's #2

Answer 1

The correct answer is 4. canal system.

The development of the canal system during the Han and Tang dynasties allowed for improved transportation and irrigation in southern China, which contributed to increased agricultural productivity. This led to a surplus of food production and economic growth, eventually resulting in an increased population in southern China.