Statistical studies show that last year there was the greatest drop in the violent crime rate over the course of a year since such statistics were first gathered. But they also reveal that at the same time public anxiety about violent crime substantially increased. Which one of the following, if true, most helps to resolve the apparent discrepancy described above? ['Longer prison sentences were the primary cause of the decrease in the violent crime rate over the course of last year.', "As in the past, last year's increase in public anxiety about violent crime has been consistently underreported in the news media.", 'People who feel the most anxiety about violent crime usually live in areas with relatively high violent crime rates.', 'The proportion of violent crimes covered in the news media nearly doubled over the course of last year.']