Many things that society values, such as good health, high-quality education, enjoyable recreation opportunities, and desirable moral attributes of the population, are not measured as part of gdp. it follows thata. gdp is still a useful measure of society's welfare because it measures a nation's ability to purchase the inputs that can be used to produce the things that contribute to welfare. b. gdp is still a useful measure of society's welfare because providing these other attributes is the responsibility of government. c. gdp is not a useful measure of society's welfare. d. gdp is still the best measure of society's welfare because these other values cannot actually be measured.