Which of the Following Is True About the Need to File

Which of the following is true about the need to file an environmental impact statement?

A) Federal government actions are the only actions that require an environmental impact statement.
B) Federal government actions always require an environmental impact statement,and in some states,an environmental impact statement is required for state government actions,it is never required for actions of private entities.
C) Federal government actions always require an environmental impact statement,and in some states,an environmental impact statement is required for state government actions; and in some states,it is required for private actions as well.
D) Federal government actions always require an environmental impact statement,and in some states,an environmental impact statement is required for private actions,but it is never required for state government actions.