What are Theodore Roosevelt and Gifford Pinchot known as? 

A)  conservationists 
B)  preservationists 
C)  people with a frontier environmental worldview 
D)  leaders of the Wilderness Society

Theodore Roosevelt and Gifford Pinchot are known as conservationists as they advocated for the sustainable use and management of natural resources. They believed in preserving forests and wildlife for the benefit of the public and future generations, but also recognized the need for economic development and resource extraction. This approach contrasted with the preservationist viewpoint, which sought to protect nature for its own sake without any human intervention or use.