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.
In this case, the doctrine the court was applying is the rule of reason.According to this judicial doctrine of antitrust law, it is a violation to take any action that will put an unreasonable restraint on trade.
Shifting out of low-productivity agriculture into high productivity manufacturing, mining, and construction contributed to total factor productivity growth.
Spain, Portugal, England and France all wanted to establish territories in the Western Hemisphere. The reasons were to gain more territory and to take advantage of all the raw resources found in the New World, Especially gold and silver along with timber and other resources. It was for a Competition of the Empires so that they'd become the most powerful in the world.