The mean finish time for a yearly amateur auto race was 186.18 minutes with a standard deviation of 0.355 minute. The winning car, driven by Hank, finished in 185.34 minutes. The previous year's race had a mean finishing time of 110.4 with a standard deviation of 0.137 minute. The winning car that year, driven by Nina, finished in 110.06 minutes. Find their respective z-scores. Who had the more convincing victory?
A) Hank, z-score: 2.25; Nina, z-score: 2.92
B) Hank, z-score: -2.25; Nina, z-score: -2.92
C) Hank, z-score: -2.25; Nina, z-score: 2.92
D) Hank, z-score: 2.25; Nina, z-score: -2.92