A cross-country analysis of health expenditures and statistics suggests that expenditures (as a percentage of GDP) in the U.S. are ________ than the rest of the world, and that treatment in the U.S. is Select one: A. higher; unambiguously worse in all areas. B. lower; less effective in some areas and more effective in other areas. C. higher; unambiguously better in all areas. D. higher; less effective in some areas and more effective in other areas