Question 2 3 pts Consider the diagram below, relating to the allocation of a stock of water to two uses: agriculture (ag) and city use (city). 175 MNB MNB 150 350 450 Quantity of Water Suppose the total quantity of water available to allocate is 700 units and the water is allocated in an economically- efficient manner. Which of the following is true about the MNB of water to agriculture at its economically-efficient quantity? O MNB $0 O MNBR- $0 O MNB' MNB' MNBy