The mean finish time for a yearly amateur auto race was 186.91 minutes with a standard deviation of 0.365 minute. The winning car, driven by Perry, finished in 185.82 minutes. The previous year's race had a mean finishing time of 111.1 with a standard deviation of 0.126 minute. The winning car that year, driven by Karla, finished in 110.92 minutes. Find their respective z-scores. Who had the more convincing victory? Perry had a finish time with a z-score of Karla had a finish time with a z-score of (Round to two decimal places as needed.) Which driver had a more convincing victory? O A. Karla a more convincing victory because of a lower z-score. O B. Karla a more convincing victory because of a higher z-score. O C. Perry had a more convincing victory because of a lower z-score. O D. Perry had a more convincing victory because of a higher z-score