Please choose the correct solution to the question: To hold batteries in place when the  "door" is missing.

Solution1: Use scissors or a box cutter to cut a piece of cardboard to hold the batteries in place, then use  duct tape to hold down the cardboard on the batteries.

Solution2: Use scissors or a box cutter to cut a piece of cardboard to hold the batteries in place, then use  duct tape to separate the cardboard from the batteries.

Answer format: solution1/solution2
Answer: solution1