Answer:
The French
Explanation:
I am sorry if I get it wrong but I am pretty sure that is the answer.
As humans dispersed from the equator peoples skin got lighter and lighter because of fewer exposure to sun radiation.
They didn't get tanned as much :)
Answer: negative reinforcement by escape
Explanation: Negative reinforcement occurs when a disliked or aversive stimulus is prevented or altered or stopped. The scenario above describes negative reinforcement by escape which means that an aversive, unwanted or disliked event is removed after it has occurred. Escape is a negative reinforcement and occurs when the aversive stimulus has occurred before being removed. In the context above, Tom was only able to prevent his loss after it has occurred, meaning an escape negative reinforcement.
Answer:
I would say A. not 100% sure but seems the most logical.