The Supreme Court Has Held That States May

The Supreme Court has held that states may:

A) never tax the income of businesses
B) tax the income of businesses so long as they are "constitutionally rational"
C) tax all income of businesses only if the business is headquartered in the state
D) tax the income of businesses so long as the burden of the state tax is apportioned fairly
E) tax the income of businesses that do more that $5 million (net) worth of business in-state