Which of the Following Is a Reason NGOs Have Increased

Which of the following is a reason NGOs have increased power as actors in international politics since the 1990s?

A) The issues NGOs have seized on can easily be solved by individual states, allowing NGO lobbying to be effective.
B) NGOs have developed the capacity to command obedience through physical means.
C) NGOs began to organize conferences on transnational issues in parallel to those organized by states and IGOs.
D) NGOs all became open to mass membership.
E) NGOs' power as actors in international politics has not increased since the 1990s.