How does periodization help historians better understand the past? A. It allows them to compare ancient or foreign cultures to modern American culture. B. It helps them build historical narratives by dividing history into distinct eras. C. It synthesizes many seemingly different ideas into a new historical conclusion. D. It strengthens historical arguments by removing individual historians' biases.

B. It helps them build historical narrative by dividing history into distinct eras

Explanation:

the tariff was created to protect industry in the northern part of the united states. industries in the north were being driven out of business by imported goods that were priced at a low rate. the goal was to protect these industries   by taxing the goods.

the answer is a. laws were enacted in the aftermath of the plot to make it harder to free slaves,increasing sectionalism