Question

1. what will heighten the risk of a fatal crash?

the presence of child passengers
the presence of adult passengers
the presence of other teen passengers

1. what are teens most likely to do when faced with a dangerous situation on the road?

underestimate the danger
overestimate the danger

1. when is a teens risk of crash highest?

during the first few months of having their license
during the first few weeks of having their license
during the first few days of having their license

Explanation:

Question 1

Research in traffic safety and teen driving behavior shows that the presence of other teen passengers increases the risk of a fatal crash due to factors like peer influence, distraction, and risk - taking behavior among teens. Child passengers often lead to more cautious driving, and adult passengers may have a moderating or safer influence.

Teens, due to their developing risk - perception and overconfidence (common in adolescent psychology), are more likely to underestimate the danger in road - related dangerous situations. Overestimating danger is less typical of teen behavior in such contexts.

From studies on teen driving, a teen's risk of crash is highest during the first few months of having their license. This is because they are still gaining experience and adjusting to driving independently. The "first few weeks" or "first few days" are too short a time frame compared to the established research on the period of highest crash risk for new teen drivers.

Answer:

the presence of other teen passengers

Question 2