Which of the following is true about the usage of public land? a. all public land is managed by the bureau of land management (blm). b. only federally owned public land is considered protected. c. public land can be protected or unprotected. d. state parks are considered unprotected public land.

The correct answer should be C. Public land can be protected and unprotected. This means that it even though things belong to the public they can either be protected by for example military and have forbidden access to people, or they can be unprotected and people can freely visit and do what they want as long as it's not destruction of property in any way.