Over time, an "American" diet developed, with dishes that used fruits and vegetables from both Europe and America. What is one cause of this development?

all of the above.

had this on a quiz and got it right.

a agree i agree becuase it is very importnat for example it can tlel you about your past for exmaple   the first culture was the semerians which people are sitll tryignt o uncover there secrets the wall is just anohter treasure that has thousnads of secrets in it to be uncovered