Why did the one vote per estate method seem unfair to the Third Estate?

It reduced the importance of the large Third Estate's numbers

Option D is correct. In the Estates-General, each estate traditionally had one collective vote, so the clergy and nobility could combine and defeat the Third Estate by two votes to one. This arrangement ignored the fact that the Third Estate represented the overwhelming majority of the population and included people who carried most direct taxes. The Third Estate therefore demanded voting by head, which would allow its larger number of deputies to matter. Option A is wrong because the issue was not the king's vote. B is false because the Church formed the First Estate, and C reverses the purpose of the dispute. The central principle is representation based on population rather than corporate privilege.

This is a Class 9 History question. Chapter: The French Revolution. Topic: French Society During the Late Eighteenth Century.