Table 2-3 Production Possibilities Corn Wheat (Bushels) (Bushels) 2,000 1,600 1,200 800 400 0 0 700 1,300 1,800 2,200 2,500 Refer to Table 2-3. What is the opportunity cost of increasing the production of corn from 400 bushels to 800 bushels? a. 600 bushels of wheat b. 400 bushels of wheat c. 800 bushels of wheat d. 200 bushels of wheat