Answer :
The main difference between hunter-gatherer societies and agricultural communities is that the hunter-gatherers only hunt for as much food as they consume in one "sitting", which farmers produce far more than needed for a single meal and either save or sell the rest.
The correct answer is: "transition from hunting and gathering to settled agriculture"
The origin of agriuculture and animal husbandry took place during the Neolithic era. Human communities changed from their former nomadic lifestyles to establishing sedentary settlements. The new economic activities, fostered job division and specialization. Different people were in charge of hunting, gathering, animal husbandry, agriculture, fabrication of tools, etc.
For the first time, specialization brought production surpluses which gave rise to the first trade operations in human history.