【单选题】

According to the passage, the main disadvantage with reconfiguring diet to lessen water usage is

A、most NorthAmericans would be unlikely to shift their diets simply in order to accommodate the exigencies of water conservation
B、the gains provided by diets with less water-intensive production would likely be less useful in areas with greater aquifer resources
C、people inAsia and certainEuropean countries are dependent on meat-products and could not do without them
D、diets with less water-intensive production tend to be less healthy than those with more water-intense production
E、governments of certain countries would be unlikely to promote programs for diet change given their possible negative effect on those countries’ economies