Which answers best describes what the virginia plan based representation in congress on?
a) the amount of the state's taxes
b) the amount of the state's income
c) the size of the state's population
d) the size of the state's territory

The size of state’s population

Explanation:

Virginia plan basically set forward the proposition of the idea of population weighted representation.

It was proposed by the then Governor of Virginia Edmond Randolph and constitutes proposition for the bicameral legislature where members will based on the quota according to the weighted population of the state.

This plan also set forward the concept of government with three branches with check and balance to resist the abuse of power from any of these governing branches. This plan was not appreciated by the small states with less population.

the atm that sounds like it should be the answer