Grabbed one gallon and wondered what the price would be . The shelf read " two gallons for $ 6.50 " and in fine print " one gallon at regular price " with no indication what regular price was . After waiting in a five minute line I finally learned that " regular price " is $ 4.00 so I left . We did n't need milk that 's as expensive as gas .

Question: How much does the gas costs ?
Answer: Less than a gallon of milk .None of the above choices .As much as one gallon of milk .As much as two gallons of milk .