Answer:
In America's large plains region (The Praire), where most of the nation's wheat fields are located, the soil is very fertile allowing a massive amount of grain to be produced and exported from The Middle Colonies: New York, Pensylvania, New Jersey and Delaware, and since wheat and grains are a staple in bread production, therefore they're referred to as the bread basket. Thereby the answer is the 1st one.
Step-by-step explanation: