Which of the Following Is NOT a Reasonable Account Used

Which of the following is NOT a reasonable account used to explain why humans started raising their own food by domesticating plants and animals?

A) by the end of the ice age, human brains were finally large enough and humans smart enough to learn that if they planted seeds they would grow
B) population pressure that came from gradually rising populations forced people to supplement hunting-and-gathering activities with simple food production
C) along the hilly flanks of the Mesopotamian River basin there were suitable plant species for cultivation, ideal climate conditions, and enough people to allow domestication of plants and animals to be a viable solution to food concerns
D) global warming that came with the end of the ice age made conditions in many regions warm and wet enough to allow plant cultivation