Which of the following would be classified as sustainable development?
A . An effort that takes on a large economic cost in order to secure
future quality of life
B. An effort that greatly improves the current quality of life while compromising only a small amount of future quality of life
C. An effort that brings a large amount of economic gain while compromising only a small amount of future quality of life
D. An effort that brings a small amount of economic gain without compromising future quality of life