The Third Estate included approximately ninety-eight percent of the French population under the Old Regime. Which group was exclusively part of this estate?

the group that was exclusively part of this estate would be: Wealthy business men. The first estate is filled with Clergies, the second esatate is filled with the families that have a nobility blood, while the third estate is filled with commoners such as peasants, artist, farmers, beggars, and businessmen (no matter how succesful they are)