Studies conducted by consumer safety advocates have shown that all-wheel drive reduces the risk of automobile accidents. But a study by the National Automobile Insurers Associations claims that vehicles equipped with all-wheel drive are more likely to be involved in accidents than vehicles that do not have all-wheel drive. Which one of the following, if true, does the most to resolve the apparent paradox? ['Owners of vehicles with all-wheel drive usually drive in more congested areas where more accidents occur.', 'All-wheel drive is a feature only available on newer model vehicles.', 'All-wheel drive vehicles are stolen at a higher rate than non-all-wheel drive vehicles.', 'Owners of all-wheel drive vehicles tend to take better care of their vehicles than do people who do not own all-wheel drive vehicles.']