Please choose the correct solution to the question: How do you clean wood floors?

Solution1: The best solution for cleaning wood floors is one cup of vinegar mixed with one gallon of water. Immerse a clean mop into the solution and wring it until it is damp-dry.

Solution2: the best solution for cleaning wood floors is one liter of vinegar mixed with one gallon of water. Immerse a clean mop into the solution and wring it until it is damp-dry.

Answer format: solution1/solution2
Answer: solution1