Genuine happiness consists not in pleasurable feelings but instead in one' s sense of approval of one' s character and projects. Thus the happy life, in fact, tends to be the good life, where the good life is understood not -- as it usually is these days -- as a life of material well-being but rather as a morally virtuous life. Which one of the following is an assumption required by the argument? ['A morally virtuous life requires the rejection of material well-being.', 'People who approve of their own character and projects tend to lead morally virtuous lives.', 'Attaining happiness is the real goal of people who strive for material well-being.', "Approval of one's own character and projects tends not to result in pleasurable feelings."]