A mountain climber ascends from the base camp at sea level to 7824 feet above sea level by the end of the day 2 of the climb. She has 22,000 more feet to climb to reach the peak. How many days will it take her to get to the top and climb back to base camp?
a. 14 days
b. 15 days
c. 16 days
d. 17 days
