Which of the Following Is True About Security

Which of the following is true about security?

A) While environmental security has been given considerable attention, there is a need to devote more attention to economic security instead.
B) Environmental security, military security, and economic security are completely separate and not related.
C) While environmental security has been given less attention, it should be considered along with economic security, military security, and their interactions.
D) Ecologists and economists do not think that environmental security should be considered in diplomatic activities even though it is important within a country.
E) Environmental security can be addressed separately from other forms of security and can be handled entirely by volunteers and nongovernmental organizations.