Answer:
3: Wu Di desired for China to be a dominant ruler who influenced the other countries, meaning he wanted China to become more powerful and he wanted to do this through trade with the other nations.
4: This document shows that the Great wall linked trade with the West and spread China's influence through trade.
5: According to the document, Wu Di would waste thousands of soldiers to protect the merchants and caravans that travelled along the trade routes.
Explanation: Hope this helps and feel better!