The most appropriate answer is:
a. the majoritarian nature of the house and majority can run it like a cartel
This option highlights how the House of Representatives operates on a majoritarian basis, meaning that the majority party has significant control over the legislative process, which can lead to a more centralized and powerful leadership structure compared to the Senate. The larger size of the House also contributes to the leadership dynamics, but it’s primarily the majoritarian nature that enables House leaders to wield more power.