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Table 3-1 Labour hours needed to make 1 kilogram: Kilograms produced in 40 hours Meat Potatoes Meat Potatoes Farmer 2 5 20 Rancher 10 Refer to Table 3-1. What is the opportunity cost of 1 kg of potatoes for the rancher? Select one: O a. 4/5 kg of meat b. 5/4 kg of meat O c. 4 hours of labour d. 5 hours of labour