xplain. Choose the correct answer. A. Time is the input. The pumping took 4 hours, starting from 0. Thus, the domain is the set of all numbers between 0 and 4 inclusive. B. Time is the output. The pumping took 4 hours, starting from 0. Thus, the domain is the set of all numbers between 0 and 4 inclusive. C. Time is the input. The pumping took 4 hours, starting from 0. Thus, the domain is the set of all numbers smaller than 0 and greater than 4 inclusive. D. Time is the output. The pumping took 4 hours, starting from 0. Thus, the domain is the set of all numbers smaller than 0 and greater than 4 inclusive