States May Constitutionally Impose a Tax

Multiple Choice

States may constitutionally impose a tax:

A) on goods passing through the state for legitimate commercial purposes, so long as it is not sold in the state
B) that taxes products from other states more heavily than in-state products
C) on the income of businesses by using formulas that account for the intrastate share of interstate commerce
D) a and b are correct
E) a, b and c are correct