Which of the Following Happened During the Market Revolution

Which of the following happened during the Market Revolution?

A) Goods could first be taken to market quickly across the entire United States.
B) Each town began to open fresh air markets for selling and bartering crops.
C) A growing number of farmers began to focus on single crops that they could sell for profit, rather than only growing what they needed to be self-sufficient.
D) The United States stopped all overseas commercial transactions between the America and Europe.
E) The United States tried to separate itself from the world economy and buy and sell only at home.