Edward is scuba diving. He stops 14.3 m below the surface to look at a fish. Then he swims up 3.2 m. Which is the best approximation of Edward's current position relative to the ocean surface?
A.) 12 meters
B.) 11 meters
C.) -17 meters
D.) -23 meters
Dara chose B as the correct answer. How might she have gotten that answer?