Which Statement Is NOT a Description of Sustainability

Which statement is NOT a description of sustainability?

A) Sustainability means managing resource use today to ensure a successful future for others.
B) Sustainability means living in a way that resource use does not exceed the biocapacity of Earth.
C) The concept of sustainability means different things to different people and can be difficult to define and measure.
D) Sustainability is a concept that only applies to the actions of environmental activists.
E) Sustainability describes the ways humans use Earth's resources.