Sixteen-year-old Thomas is in a difficult position. He has been trying to break into the popular group at school, and now one of the members of the group has invited him to a party on Saturday. He really wants to go, but he has already volunteered to help his church youth group with an activity for first graders that night. In addition, he knows that there will be drinking at the party, and he has promised his mother that he would never drink in high school, and she trusts him. Predict what Thomas will do. Explain his decision using Piaget's theory of cognitive development, Kohlberg's theory of morality, and Erikson's theory of identity formation