Giving 100 ! in a year, tony rents 50 dvds at $6 each and pays $50 for 10,000 gallons of tap water. tony is maximizing total utility. if tony's marginal utility from water is 0.4 units per gallon, his marginal utility from a dvd rental is ? units. how many units is tony's marginal utility from a dvd rental?

Trade will take place: a. if the maximum that a consumer is willing and able to pay is less than the minimum price the producer is willing and able to accept for a good. b. if the maximum that a consumer is willing and able to pay is greater than the minimum price the producer is willing and able to accept for a good. c. only if the maximum that a consumer is willing and able to pay is equal to the minimum price the producer is willing and able to accept for a good. d. none of the above.