Nine-year-old Brian has a difficult time making friends at school and being chosen to play on the team. He also has trouble completing his homework and, as a result, receives little positive feedback from his parents or teacher. According to Erikson's theory, failure at this stage of development results in___________.
1. A sense of guilt.
2. A poor sense of self.
3. Feelings of inferiority.
4. Mistrust.