Final answer:
Tessa's cruelty most likely decreased as she grew older, based on information in the textbook.
Step-by-step explanation:
Based on the information in the textbook, Tessa's cruelty most likely decreased as she grew older.
This is because as individuals mature and gain a better understanding of empathy and consequences, they often begin to develop more positive behaviors and attitudes towards others.
As Tessa moved from elementary school to middle school and then to high school, she may have encountered different social dynamics and behavioral expectations, which could have influenced her to change her behavior.