The Silk Road, China's Grand Canal, printing factories, & strong iron industry These factors enabled the Tang and Song dynasties to have
A. growth in commerce and trade.
B. a strong army and navy.
C. more time to focus on the arts.
D. the money to build academies.

growth in commerce and trade.

Explanation:

The Tang and Song dynasties experienced growth in commerce and trade because both used their resources wisely. The Silk Road and Grand Canal were very useful trade routes. Iron industry and printing factories provided jobs for thousands of workers, strengthening the Chinese economy.

answer; acquired mainly during early childhood;