Anyone believing that no individual can have an effect on society' s future will as a result feel too helpless to act to change society for the better. Thus, anyone who wants to improve society should reject the belief that its future will be determined entirely by vast historical forces that individuals are powerless to change. Which one of the following principles, if valid, most helps to justify the argument? ['Anyone who feels too helpless to act to change society for the better should reject the belief that its future will be determined by vast historical forces that individuals are powerless to change.', 'Each individual should act to improve society if individuals in general feel powerless in the face of vast historical forces.', "Anyone who believes that individuals can have an effect on society's future should act to change society for the better.", 'No one who wants to improve society should accept any belief that makes him or her feel too helpless to act to change society for the better.']