Take the following as truth: AT&amp;T and MCI have protested the tax and pledged to pass the cost on to  MCI charges 5 percent on all out of state long-distance calls, and AT&amp;T charges a flat rate.
Then the following statement: "AT&T's flat rate is usually cheaper than MCI's per call tax. " is true, false, or inconclusive?
Answer: Inconclusive