Answer:
A). Although tougher licensing laws have led to fewer deaths for 16-year-old drivers, fatal crashes involving 18 year-olds have increased.
Step-by-step explanation:
The key idea that is being conveyed through the text is the positive impact of licensing laws in reducing the number of car crashes among the 16-year-olds and the negative effect for the Older teens. The title itself suggests that the author aims to inform the readers that the stricter licensing laws have brought the fall in recent car crashes among the 16-year-olds and reduction in number of fatalities but the vice-versa for 18-year-olds as it has increased significantly among them after these laws have been enforced. Thus, option A is the correct answer.