The economies of the Middle Colonies relied on and agricultural. Fill in the blank!

The Middle Colonies enjoyed a successful and diverse economy. Largely agricultural, farms in this region grew numerous kinds of crops, most notably grains and oats. Logging, shipbuilding, textiles production, and papermaking were also important in the Middle Colonies

Explanation:

so I guess its either shipbuilding or logging

answer; /// i do believe that its napolean's conquest of spain;