Answer:
During the Middle Ages, invasions and migration in Song China did not play a significant role in social, cultural, and economic change.
Explanation:
- The Song dynasty of China ruled over a large part of China for approximately 300 years between 960 AD and 1279 AD.
- This dynasty was known for its strict rule that was utterly based on the cultural beliefs of the state.
- The state had a strong economy which was not vulnerable to external factors like invasions and migrations.