B.) to leave alone and let be
Laissez-faire refers to a free market economic policy where the government has no control over the economy. It is a French term which means to "let it be".
Capitalism in its pure form is a laissez-faire economic system. During the late 19th century, the US practiced laissez-faire capitalism. The government had no regulations on the economic system and employers were allowed to run their businesses as they wished. In a free system like this there are opportunities to become very wealthy but workers are often exploited.
Segregation was mandated by law so they had to separate themselves from white people, however many willingly did because they wanted to feel safe with people in their own community.
A written brief in Supreme Court is much superior compared to an oral argument. A written brief proves to be the primary document from which a judge reads and understands the case. A brief is something which can be carried handy and can be used for future references.
A brief needs to be thoroughly reviewed and edited until it provides the clear outline of the case.
An oral argument can be at times too persuasive that it may bias or influence the minds of the judges and also the attorneys must be well prepared and not deviate from their defense while they present the argument.