Answer:
B. The estates general has existed for centuries, while the national assembly was formed in 1789
Step-by-step explanation:
The states General was first established in 1302. It was a form of legislative assembly where the government gathered a group of people from different classes in order to talk about policies.
So, some form of discussion between the ruling class and the common class has exist in France for centuries before the French revolution.
The national assembly was first held after the French Revolution. The purpose was to create a new form of government to operate the country after they got rid of the nobles. They felt that even during the estates General, the ruling class only include the common class as toke without paying much attention to their issues.