What Are the Primary Factors Affecting Whether Violent Nonstate Actors,such

What are the primary factors affecting whether violent nonstate actors,such as rebel and terrorist groups,can mobilize?

A) Organizing people and garnering resources in order to commit violence
B) Overcoming people's natural inclination against violence and protest
C) Organizers struggling to maintain passion for their cause in the face of adversity
D) Indoctrinating adherents to the cause,and how to fight and conduct violence