The correct answer would be a <span />
The development of New Orleans was hindered historically because of it's geographical position. It is surrounded by the Bayou, rivers, higher ground, and all this made it more difficult for things to develop in times where technology was not as developed.
Most part of the rest of North America is cold in the winter and warm in the summer, with moderate precipitation. Some areas have mild winters and long, hot summers and others have harsh winters and short summers