Income in a single year is a very poor guide to income and wealth over even a few years, much less a lifetime; in the longer run, a tax on what people spend is therefore not much different than a tax on their income. (A) than a tax on their income (B) from a tax on what they earn (C) than taxing income (D) from the income tax（B）
(E) than a tax on what people earn I think D is more concise. Why is it not correct? | 
