Which of the Following Is an Example of an Environmental

Which of the following is an example of an environmental issue that has reached the third stage of a norms cycle?

A) Norms entrepreneurs are actively convincing other actors about the importance of the environment.
B) The issues dealing with the environment are being favorably covered by major media sources.
C) The proper steps to be taken in order to address environmental concern are being discussed in international organizations.
D) Some states sanction other states for not protecting the environment.
E) Enforcement of environmental protection is not needed,as states protect the environment on their own.