The most important factor to the early economic development of the Mid-Atlantic Colonies was D) trade with American Indians.
Which economic activity was important to the Mid-Atlantic colonies?
When the Mid-Atlantic colonies were first formed, they had to rely on trade with American Indians to survive.
This trade brought to them furs which they then exported to be used for making clothes in Europe and giving the colonies funding.
Find out more on the Fur trade at https://brainly.com/question/1836662
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