I think its A centralized absolute power in one ruler and B eliminated the senate
Madison understood that power can corrupt as seen with the kings of their time. So Madison set up the form of government that relies on separate branches of government that operates under checks and balances. This means that no one branch can get too powerful and overrule the other branches. We see this in modern government in the legislative, executive and judicial branches. Madison improved upon the idea that power cannot be held by one man or a few people.
I'm pretty sure the answer is the cabinet. Hope this helps. I'm in the middle of a post test and had this question so I just gave it my best guess by using my notes to help a bit.
Hope this helps. Have a good day!
