The US, Canada, and Mexico all participate in the USMCA so the answer is B
Motion of heat inside and object
The Articles of Confederation were discarded in favor of a stronger more centralized federal government because of problems in governing that were associated with weaknesses of the Articles of Confederation. The Articles failed to allow the national government to collect taxes, resolve inter-state disputes, and govern effectively more generally. Therefore, at the Constitutional Convention they decided to scrap the Articles and write an entirely new Constitution.
An Arms-Build up would lead to peace due quite frankly, to fear. It would lead to peace, just like for example, North Korea. No one is allowed to have weaponry, meaning fear. No one attempts to revolt, due to fear. Having a militia, would enforce fear, causing no revolts, or riots, or anything of the sort.