Thousands of books have been written to answer this question.
Nature? Nurture? Conditioned responses? Oedipus complex? Self-gratifing behavior? Existentialism?
What does your text materials say?
I just needed your answer for that question
No, Rose. You don't NEED my answer to the question. You need your own answer, based on what you've learned.
I assume your reason for taking this class is to learn about psychology. You can't learn about this complex subject without reading your text materials.
We'll be glad to help you understand them, but you need to meet us half way.
We're a Homework HELP board, not a Homework DO board.