Refer to Exhibit 3-5. If the economy depicted in the diagram above chooses to shift more of its resources into clothing, it will have to give up:
A.
smaller and smaller amounts of food per unit of added clothing, as the quantity of clothing produced increases.
B.
nothing, since food and clothing are not substitutes.
C.
relatively equal amounts of food per unit of added clothing, as the quantity of clothing produced increases.
D.
larger and larger amounts of food per unit of added clothing, as the quantity of clothing produced increases.