Forest lives in complete isolation in Montana. He is self-sufficient and feeds himself through hunting, fishing, and farming. Which of the following statements about Forest is true?
A.Forest is not required to make trade-offs because he is self-sufficient.
B.Forest has unlimited resources.
C.Forest doesn’t have to consider costs and benefits.
D.Forest has to make trade-offs.
正确答案:Forest has to make trade-offs.