The Great Compromise, regarding the structure of the United States Congress, was:
B. A combination of the Virginia and New Jersey Plans.
Explanation:
1. The Virginia Plan proposed a bicameral legislature where representation would be based on population, favoring larger states.
2. The New Jersey Plan suggested a unicameral legislature with equal representation for all states, which was preferred by smaller states.
3. To resolve the dispute between large and small states, the Great Compromise combined elements of both plans by establishing a bicameral legislature with the House of Representatives based on population (favoring large states) and the Senate with equal representation for all states (favoring small states).