Your comment would be better if you could explain why you think it is wrong, rather than merely making an empty assertion. I think you are just misinterpreting

Your comment would be better if you could explain why you think it is wrong, rather than merely making an empty assertion. I think you are just misinterpreting the analysis. It says "Option B still gets you the car 90% of the time", and Option B entails switching. Do you read it differently?