Final answer:
B.You are involved in a collision and there is an injury. In California, you must file a report of a traffic accident when there is a collision and an injury involved. Failing a smog test or changing insurance companies does not require a report. Vehicle emissions contribute to air pollution and can cause early deaths.
Step-by-step explanation:
In California, you must file a report of a traffic accident when you are involved in a collision and there is an injury. This is the only scenario in which you are required to file a report.
Failing a smog test for your vehicle or changing your insurance company does not require you to file a report of a traffic accident.
It is important to note that vehicle emissions contribute to air pollution and smog, and can have serious health consequences. According to a 2013 study by MIT, vehicle emissions cause approximately 53,000 early deaths per year in the United States alone.