To Increase Their Influence,NGOs Have Begun to Focus on Working

To increase their influence,NGOs have begun to focus on working with which of the following?

A) national governments only,allowing them to avoid the slow decision making of IGOs
B) IGOs only,allowing them to remain free from limitations placed on them by state governments
C) regional organizations only,allowing them to remain free from government manipulation either directly or through IGOs
D) national governments,IGOs,and regional organizations