Final answer:
Jenny should stand trial as an adult for second-degree assault due to her actions causing serious injury to a 9-year-old girl while driving under the influence.
Step-by-step explanation:
In this case, Jenny should stand trial as an adult for second-degree assault. Second-degree assault typically involves intentionally causing serious bodily harm to another person, and in this scenario, Jenny's actions resulted in serious injury to the 9-year-old girl. The fact that Jenny was driving under the influence with a high blood alcohol level further reinforces the seriousness of the offense.
Jenny's age, academic performance, and her difficult home life are important factors to consider, but they do not absolve her of the consequences of her actions. The court should assess the situation and determine Jenny's accountability based on the severity of the offense and applicable laws.