Some people believe that good health is due to luck. However, studies from many countries indicate a strong correlation between good health and high educational levels. Thus research supports the view that good health is largely the result of making informed lifestyle choices. The reasoning in the argument is most vulnerable to criticism on the grounds that the argument ['overlooks the possibility that the same thing may causally contribute both to education and to good health', 'presumes, without providing justification, that only highly educated people make informed lifestyle choices', 'overlooks the possibility that people who make informed lifestyle choices may nonetheless suffer from inherited diseases', 'does not acknowledge that some people who fail to make informed lifestyle choices are in good health']