A school put on a play. The play cost $1200 in expenses. The student to charge $4 dollars for tickets there will be one performance of a play in an auditorium that seats 500 people. What is the domain of the function that shows the profit as a function of the number of tickets sold?

A. The domain is all real numbers from negative 1200 to positive 2000.
B. The domain is all integers from negative 1200 to positive 2000.
C. The domain is the integers from 0 to 500.
D. The domain is all real numbers from 0 to 500.