A dolphin was swimming 9 feet below sea level. The number line shows the location of the dolphin. It then swam up 5 feet. Describe how to use the number line to find the new location of the dolphin. -10 9 8 7 6 5 4 3 2 -1 0 1 2 3 4 5 6 7 8 9 10 O A. On the number line, move 5 units to the right. End at 14. The dolphin was 14 feet above sea level. O B. On the number line, move 5 units to the left. End at -14. The dolphin was 14 feet below sea level. O c. On the number line, move 5 units to the right. End at -4. The dolphin was 4 feet below sea level. D. On the number line, move 5 units to the left. End at 4. The dolphin was 4 feet above sea level.