A student in Arizona does not have the same amount spent on their education as a student in New York. Which of the following explains this per-pupil expenditure difference? a. The southwestern states fund education at higher levels than northeastern states. O b. Citizens in Arizona are more willing to financially support public education than those in New York. O c. The cost of living in the Southwest is less than the cost of living in the Northeast. O d. The income level of the residents of Arizona is higher than the income level of the residents of New York