19. Stacy and Justin each created a number pattern. Stacy's rule is "Add 2." Justin's rule is "Add 4." Both the patterns start at 0. Which is true about the third number in each of their number patterns? A. The third number in both patterns is 4. B. The third number in both patterns is 8. C. The third number in Justin's pattern is double the third number in Stacy's pattern D. The third number in Justin's pattern is two more than the third number in Stacy's pattern.