HELP (BRAINIEST PROMISED) A dolphin was swimming 6 feet below sea level. The number line shows the location of the dolphin. It then swam up 4 feet. Describe how to use the number line to find the new location of the dolphin.

A.

On the number line, move 4 units to the left. End at 2. The dolphin was 2 feet above sea level.

B.

On the number line, move 4 units to the right. End at −2. The dolphin was 2 feet below sea level.

C.

On the number line, move 4 units to the right. End at 10. The dolphin was 10 feet above sea level.

D.

On the number line, move 4 units to the left. End at –10. The dolphin was 10 feet below sea level.