Fifteen Points on the line here folks What effect did the invention of tools have on early humans? a. They required humans to stand close to animals when hunting. b. They increased chances for survival. c. They decreased chances for survival. d. They allowed more animals to graze the fields. Please select the best answer from the choices provided A B C D

Respuesta :

I would say A and B, but go with your gut because I don't know anything 100%. good luck!

Answer:

The answer is B

Explanation: