Answer:
The ruling of the case "Brown vs the Board of Education" is, that racial segregation is unconstitutional in public schools.
That would be "B". The French traded fur and other goods with local Native Americans.
The individualistic and isolated people think of themselves only. They pose a threat of crime in the society.
Individualism also brings a feeling of consumerism and desire of comfort in the people. To achieve this in an easy and quick way, they adapt wrong pathways.
Individualism also makes people less connected to their families and they lack apathy towards other, which is harmful to a society.
Disease was the most dangerous thing