Answer: 3
Explanation:At that time, the social classes were divided into three groups called as estates. The first estate was of clergy, the second estate was of nobility and the third estate consisted of other classes and individuals such as peasants, merchants, lawyers, artisans and industrial workers
Im stuck between a and d its like they both seem right, sorry.
The correct answer is that groups of people may be classified in a reasonable way.
This is only for things like statistical data when doing the decennial census or anything similar.
Harriet Tubman because she was strong and lead slaves to freedom.