Answer:
The correct answer is C. The U.S. Constitution contains the provision from the Virginia Plan that the House representation is proportional to population size (although originally the Virginia Plan proposed a proportional representation for the Senate too).
Explanation:
One of the main features of the Virginia Plan, and one of the most controversial issues during the Constitutional Convention, lay in the design of the Legislature. The plan provided for a two-chamber system in which both chambers should be chosen in proportion to the number of inhabitants. The population of each state would choose the lower house directly, which in turn would elect the members of the upper house. This proposal was criticized in particular by the less populous states, which feared a loss of power within the central government. As a counter-proposal, they submitted the New Jersey Plan.
The solution to the conflict came after long debates in the Connecticut Compromise, which also provided for two chambers. The lower house should consist of directly elected representatives (today's House of Representatives). In the upper house, each state should have exactly two representatives appointed by them (the current Senate). From 1913, the senators are elected directly.