Scarcity exists because (因为存在稀缺——中文由在线翻译而来,仅供参考.下同.)
A.
society and people are greedy and wasteful.社会和人民是贪婪和浪费的。
B.
our wants exceed the resources available to satisfy them.我们的愿望超过了可用的资源来满足他们。
C.
of the inefficient choices we make.我们做出的低效选择。
D.
poor people need more food and other goods.穷人需要更多的食物和其他物品。