The answer is C, when there are one, two, or three or more passengers, the crash risk for teenage drivers increases.
According to the law firm, Edgar Snyder & Associates, the crash risk doubles when a teenager is driving with other passengers in the car. Overall, teenagers are less able to recognize dangerous driving conditions, which is why they engage in risky behaviors such as texting or talking on the phone while driving; driving under the influence of alcohol is another common cause in car crashes involving teenage drivers.