Mike discovered that the pool in his backyard is leaking slowly. The pool holds 17,085 gallons of water, and is leaking at a rate of 20 gallons per day.
If Mike does not replace the water that has leaked from the pool, how many gallons of water will remain in the pool
after 103 days?

A. 15,025 gallons
B. 16,055 gallons
C. 17,188 gallons
D. 19,145 gallons