Identify a true statement about the conservation movement.

Select one:

a. It argued that the natural world is available only for the exploitation of human beings.

b. It believed that the natural world does not have the productive capacity to produce long-term income.

c. It considered natural resources to be able to provide an inexhaustible supply of material.

d. It argued that the natural world was valued as a resource, providing humans with both direct benefits and indirect benefits.