The u. s. constitution establishes six-year terms for members of the senate in order to

prevent senators from being overly influenced by public opinion.

Explanation:

i believe the answer is d. it was not uncommon for people to faint or even convulse at these high-energy meetings.

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.