Please choose the correct solution to the question: Carry a propane tank without it rolling around in your vehicle.

Solution1: Put the empty propane bottle into a bag. Hang the bag on your clothing hook. That will keep it stable instead of rolling around the car.

Solution2: Put the empty propane bottle into a milk crate. The milk crate will keep it stable instead of rolling around the car.

Answer format: solution1/solution2
Answer: solution2