What was a key element in developing a market economy in nineteenth century america
A) creating a system of toll roads to generate a federal revenue
B) Improving roads to transport goods
C) Retooling the Conestoga wagon to carry a heavier load
D) Developing a merchant marine to promote water transport
A key element in developing a market economy in nineteenth century america was "B) Improving roads to transport goods," since without these routes of transport business was "stuck" in only certain areas.