Please choose the correct solution to the question: Make a fishing pond in back yard.

Solution1: You can use sand if you dont want to fill with water.

Solution2: Layout and dig a large round area in your backyard.Dig it out three feet deep.Then layer the bottom of it with rubber that you roll off of a roll.And overlap the seems six inches in, to make a good seal.then fill with water.

Answer format: solution1/solution2
Answer: solution2