Sport utility vehicles (SUVs) are, because of their weight, extremely expensive to operate but, for the same reason, in an accident they are safer for their occupants than smaller vehicles are. Nonetheless, an analysis of recent traffic fatality statistics has led auto safety experts to conclude that the increasing popularity of SUVs is an alarming trend. Which one of the following, if true, most helps to account for the response of auto safety experts to the popularity of SUVs? ['Recent statistics suggest that SUVs are as likely to be involved in collisions as smaller vehicles are.', 'Vehicles with a reputation for being safer than others tend to be driven more carefully than other vehicles.', 'Recent statistics suggest that large vehicles such as SUVs tend to carry more passengers than smaller vehicles do.', 'Recent statistics suggest that the average number of fatalities in collisions between SUVs and smaller vehicles is higher than for other collisions.']