Bolivia has about 50% of the world's reserves of lithium. It is also a major producer of zinc. Suppose that Bolivia produced only those two goods and that its linear production possibilities frontier had the following end points: 20,000 tons of lithium and zero zinc, or 10,000 tons of zinc and no lithium. A combination of 12,000 tons of lithium and 5,000 tons of zinc would be_________________. A. Attainable and efficient. B. Attainable, but not efficient. C. Efficient but not attainable. D. Unattainable
