A 350-gallon pool is being drained at a rate of 2 gallons per minute. What is the domain of the function that represents the volume of water in the pool after x minutes?

A. 0 ≤ x ≤ 25
B. 0 ≤ x ≤ 175
C. 0 < x < 350
D. 0 < x < 400