John like to drive cars really fast. The faster he goes the more he enjoys, but also the higher the chances of getting in accident. a) (10 points)John wants to use the cost benefit principle to decide how fast to go.and he asks for your help. Explain in your words how John's decision on speed should be made according to the Cost-Benefit principle. b) (10 points) Use your answer to a) to answer the following question. Do you think the use of mandatory seatbelts in cars that reduce the severity of an accident is likely to make people drive faster or slower? Why/