The issue of representation in the legislature was a significant debate at the Constitutional Convention primarily because of differing interests between larger and smaller states. The correct explanation would be:
Some wanted representation to be based on the population of the state, while others wanted it to be a set number.
This disagreement led to the Great Compromise (or Connecticut Compromise), which created a bicameral legislature. In this system, the House of Representatives would have representation based on population, benefiting larger states, while the Senate would have equal representation, with two senators from each state, benefiting smaller states. The debate was further complicated by issues like slavery, which raised questions about whether enslaved individuals should be counted in a state's population for representation purposes.