I believe it the answer is B. Men made the tools and hunted for food. I hope this helped.
Answer: There movement kind-off help them exercise and there ideas make the society a better place. The effect off the movement makes them have less food cause they can't carry all there foods to where they are moving to.
Explanation: Well if you move a lot you burn lots of calories and if they come up with an idea they tell the king and him might like or not like it. And if they move a lot they will have less food cause you can't carry all the food you have.
By the way I am 12.
