What was the major economy of the middle colonies?

Explanation:

An economy depends on its industries. The middle colonies had a variety of industries that made up their economy -- especially their exporting economy.

but these last 2 were not major industries, but there was enough there that they could export  them.

he Middle Colonies had much fertile soil, which allowed the area to become a major exporter of wheat and other grains. The lumber and shipbuilding industries were successful in the Middle Colonies because of the abundant forests, and Pennsylvania was moderately successful in the textile and iron industries.

number 4. should be the correct answer

the answer is c have a good day