Ethicist: Only when we know a lot about the events that led to an action are we justified in praising or blaming a person for that action -- as we sometimes are. We must ttherefore reject Tolstoy' s rash claim that if we knew a lot about the events leading up to any action, we would cease to regard that action as freely performed. Which one of the following, if assumed, enables the conclusion of the ethicist's argument to be properly drawn? ['People should not be regarded as subject to praise or blame for actions that were caused by conditions beyond their control.', 'The responsibility a person bears for an action is not a matter of degree; however, our inclination to blame or praise whoever performed the action varies with the amount of information available.', 'If we do not know much about the events leading up to any given action, we will regard that action as freely performed.', 'We can be justified in praising or blaming a person for an action only when we regard that action as freely performed.']