Rose was so focused on studying for her final exam that she was surprised when her brother knocked on her door and told her that
dinner was ready. She smelled the yeast rolls warm from the oven and realized how hungry she was. Which hormone played a role in Rose's physiological response to dinner?
The best answer to fill in the blank would be ''Bystander'' because as that role you can go tell any adult or higher authority to stop the fighting so you don't try to be a hero and get yourself hurt as well.
