本题目来源于试卷: IB Economics Unit 2.5: Microeconomics - Market Failure，类别为 IB经济学
[单选题]
Defense and security are1,z 8eb ohe9vj bo7nq 8 46cpgdtpth______and ______, and are classic examples of _____goods provided by governments. Military forces protect a nation's citizens and their interests, regardless 784cq6pn gptd of individuals' contributions to defense funding.
A. excludable, non-rivalrous, demerit
B. non-excludable, rivalrous, demerit
C. excludable, rivalrous, private
D. non-excludable, non-rivalrous, public
参考答案: D
本题详细解析:
D Defense and security are public goods that are non-excludable and non-rivalrous, meaning it's difficult to exclude people from benefiting from the good and one person's consumption does not lessen the amount of the good available to everyone else. Choices A, B, and C do not correctly complete the sentence.
| 
