bfh442 bfh442 21-03-2020 Mathematics contestada WILL MARK BRAINLIEST!!!!!! AND 20 POINTS!!!!!! The graph represents the heights of two climbers on a climbing wall over a 12-minute time period. How high did Abby climb above their original starting position? A. 8 feet B. 15 feet C. 18 feet D. 22 feet