My good man we need too see our options in order to answer your question :)
Hi!
In order for me to help you, could you please be more specific? What technology?
Answer:
I believe the answer is D.) gender and age.
Answer:
B.A surplus of food allowed people to specialize in different jobs.
Explanation:
A surplus of food is definitely something that allowed people to specialize in different Jobs. This is how we can say that the people in the past used this surplus. I hope this works for you.
