While there are no options, some of the characteristic is that the economy of the North was based on industries, and currently on technology as well.
The North became an early leader in industrialization because of its fast moving rivers. In addition, its soils and climate was not favorable for agriculture. The settlement of large number of people in the area also served to stimulate commerce.
Answer:
he Scientific Revolution changed the way people thought about the physical world around them. The same spirit of inquiry that fueled the Renaissance, led scientists to question traditional beliefs about the workings of the universe.
At a time when trade and transport were made primarily by water, and bearing in mind that European powers needed to have free access to the rich colonies, and only by sea could they communicate with America and the colonies, the ocean and the seas were the higways of the past. Therefore, access and control of the sea routes, was the only way to have control over the colonies, their riches; and become the dominant power in the world. In addition, the wars between France and Great Britain were not only for trade or wealth, but for power itself, to decide who would dominate the seas.
The answer to your question is B. However the troops were eventually withdrawn from Vietnam due to disagreements from the American people.