30. Which of the following best expresses the main idea of the passage?
(A) Ebola outbreaks can be eliminated solely through medical treatment.
(B) International organizations should assume full responsibility for public health emergencies.
(C) The current Ebola outbreak highlights the importance of coordinated action, adequate resources, and community cooperation.
(D) Previous Ebola outbreaks offer little information that can be applied to current disease-control efforts.