Final answer:
The method of risk management that John is describing is Avoidance. By deciding not to drive or ride in a car in the future, John is avoiding the risk of being involved in another accident.
Step-by-step explanation:
The method of risk management that John is describing is Avoidance. Avoidance involves completely avoiding or eliminating a particular risk or activity to minimize the chance of negative consequences.
By deciding not to drive or ride in a car in the future, John is avoiding the risk of being involved in another accident. This method of risk management can be effective in certain situations where the potential risks outweigh the benefits.