Answer:
Answer is steel.
Refer below for the expanation.
Explanation:
Technological developments, such as steel, helped advance Chinese trade.
Steel have increased chinese trade.
These acts affected the lives of colonists because they were being treated as if they were still under the king’s rule. They had to house soldiers and pay taxes that went to the king although they weren’t living there anymore.
Answer:
ethnic and territorial disputes,
the lingering influence of the Communist party,
constitutions that are difficult to uphold
Explanation: just took the test
D. To earn money for sick children in the slums
That's false. The Muslims won the Crusades.