How did the geographic features of the American colonies, such as natural harbors and navigable rivers, primarily influence their economic development?

The correct answer to the question "How did the geographic features of the American colonies, such as natural harbors and navigable rivers, primarily influence their economic development?" is Option B: They facilitated trade and commerce with Europe..

The other options — A) They encouraged large-scale farming in all regions., C) They led to a focus on mining precious metals., D) They promoted isolationist economic policies. — are incorrect for this GED Exam Prep question. As explained above: Natural harbors and navigable rivers provided excellent access for ships, making it easier for the colonies to engage in trade and commerce with Europe, which was crucial for their economic growth.