Answer:
Britian, France, and Russia
This type of
response mainly relies on "<span>Diplomacy", which is the preferred course of action for most nations before resorting to military action because it's more legitimate. </span>
<span />
Northerners responded in many different ways to the Fugitive Slave Act, but the best option from the list would be "<span>A. Some northern states enacted legislation opposing it" was one of the major tensions leading up to the war. </span>
Basically, the federalist wanted a stronger central government while the Republicans wanted a weaker one.