Please choose the correct solution to the question: To prevent your dog from digging his way out of your yard

Solution1: Lay chain link fence over the ground at the base of the fence, or you can set large, heavy rocks along the base of the fence.

Solution2: Lay chain link fence over the ground at the base of the fence, or you can set small, decorative stones along the base of the fence.

Answer format: solution1/solution2
Answer: solution1