【单选题】Assume for Namibia that the opportunity cost of each hut is 200 bowls. Which of these pairs of points could be on Namibia 's production possibilities frontier?
A.
(200 huts, 30,000 bowls) and (150 huts, 35,000 bowls)
B.
(200 huts, 40,000 bowls) and (150 huts, 30,000 bowls)
C.
(300 huts, 50,000 bowl) and (200 huts, 60,000 bowls)
D.
(300 huts, 60,000 bowls) and (200 huts, 80,000 bowls)
【单选题】Assume for the United States that the opportunity cost of each airplane is 100 cars. Which of these pairs of points could be on the United States' production possibilities frontier?
A.
(200 airplanes, 5,000 cars) and (150 airplanes, 4,000 cars)
B.
(200 airplanes, 10,000 cars) and (150 airplanes, 20,000 cars)
C.
(300 airplanes, 15,000 cars) and (200 airplanes, 25,000 cars)
D.
(300 airplanes, 25,000 cars) and (200 airplanes, 40,000 cars)