C) Roosevelt stressed the importance of conservation as president to protect lands from industry.
The beliefs held by Theodore Roosevelt significantly influenced his presidency, particularly in relation to conservation. Roosevelt was an ardent supporter of conservation efforts, believing that natural resources should be preserved for future generations. He established national parks, forests, and monuments, and implemented policies to protect the environment from industrial exploitation. This commitment to conservation helped shape many of his policies and legacy, making him one of America's most notable advocates for environmental preservation.