According to the Video Lecture and Congoleton's article (additional required reading 4) Mancur Olsen makes certain assumptions about Collective Action include (Select all that apply) [.5] Question 7 options: costs and benefits are affected by group (IGO) size and the nature of the interests that characterize a ''group (IGO)'' That states (like individuals) are mainly self-interested and so focus on their own costs and benefits when engaging in collective action the success of a collective action is determined by the number states participating and the level of their commitment to the action