They was in war at that time
Courtney is being driven by intrinsic motivation.
Intrinsic motivation means that Courtney will be rewarded internally - she will learn new things and be happy about her newly-acquired knowledge. She isn't looking to get any material rewards due to her interest in psychology - she will be satisfied with the knowledge she will gain, which is why her motivation is intrinsic rather than extrinsic.
Answer:
plants and animals are domesticated
People start to transition from hunting and gathering to agriculture.'
People build permanent shelters
Farming surpluses develop.
Explanation:
By helping them in America