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

Question: Why do I want to buy two gallons instead of one ?
Options:
0. None of the above choices .
1. I want to spend more money .
2. I want to save some money .
3. I need more milk .
Answer: 2