Well, I am pretty sure that the correct answers will be C and D. This is because when people had traveled with Marco Polo they had seen all of the opportunity that they were missing when they weren't trading what they had traded with the Orient when they first started. The Crusades influenced a lot of people to start trading with others I personally think that they forced some people to do it but we don't know that for sure.
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C; Under the Articles of Confederation, the federal government was too weak to provide assistance during Shays' Rebellion. The only other course of option would be the Massachusetts Militia, a state run militia.
The answer to the question is C
