Please choose the correct solution to the question: How can you made a fruit fly trap?

Solution1: Fill a quart-size bowl with a sudsy mixture of water and dish rags. Then set a smaller bowl, filled with a quarter-cup of red-wine vinegar, afloat in the center. The vinegar attracts fruit flies, which then get stuck in the suds.

Solution2: Fill a quart-size bowl with a sudsy mixture of water and dish soap. Then set a smaller bowl, filled with a quarter-cup of red-wine vinegar, afloat in the center. The vinegar attracts fruit flies, which then get stuck in the suds.

Answer format: solution1/solution2
Answer: solution2