What happened once people had a surplus of food?
a. they irrigated crops and stopped eating meat.
b. they began to divide up the labor and do other tasks.
c. they no longer needed to trade with other societies.
d. they could be considered a civilization.

A) - no, we haven't stopped eating meat, even though we do have a surplus of food!
b) - yes, this is true! if there was a surplus of food, not everyone has to produce food and some people can do other tasks! correct answer!
.. so we don't have to look further:)