Please choose the correct solution to the question: Make your own potting soil.

Solution1: Go outside and dig up some dirt. Carefully spread thin on a cookie sheet and bake for 10 minutes. This kills all germs.

Solution2: Go outside and dig up some dirt. Carefully spread thin on a cookie sheet and let sit in sun for 10 minutes. This kills all germs.

Answer format: solution1/solution2
Answer: solution1