Because Daisy is currently married to a wealthy man and understand that wealth does not bring her happiness.
So, she come to gatsby expecting that she would receive different kind of love.
She become emotional when she realize that Gatsby is currently trying to win over with his wealth just like her husband and not his love.
Belief affects behavior by preventing one from taking certain actions that they would have took if the belief was not there. Example: If someone tells you that if you jump off a cliff you will break your neck. You wouldn't jump off the clip because you have a belief that your neck would break. Beliefs can control and shape your reality.
Answer:
C. California would be a free state and Congress would pass the Fugitive Slave Law.