Choose all that apply. people may have chosen to become sedentary because a) surplus food meant others could learn different jobs. b) plows were easier to make than spears. c) farming created surplus crops to survive winter. d) large groups were safer. large department stores emerged

Sedentary means a way of life that doesn't involve  nomadic activities (such as moving from one place to another) The reasons why people may have chosen to become sedentary are : 

C. Farming created surplus crops to survive winter
A. Surplus food meant others could learn different jobs (that doesn't necessarily involved in gathering food)
D. Large Group are safer

hope this helps

Smelly rocks sink in water haha!