Context: 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 ?
Option 0: Less than a gallon of milk .
Option 1: None of the above choices .
Option 2: As much as one gallon of milk .
Option 3: As much as two gallons of milk .
Answer: 2