It would be the economic policy of "mercantilism" that was based on the idea that the American colonies primarily were meant to provide economic benefits for Great Britain, since this philosophy held that trade between two entities benefits mainly the larger entity (in this case Britain), and that it is in that entity's best interest to protect its trading partner (the colonies).
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.
The sun burnt faces were from Ethiopia