Please choose the correct solution to the question: How to remove set-in laundry stains.

Solution1: Saturate set-in stains with vinegar, then rub the spot with a paste made from equal parts vinegar and baking soda. You can add a couple tablespoons each of vinegar and laundry detergent to a bucket of water and soak the garment overnight ​if the stain persists. Rinse and wash.

Solution2: Saturate set-in stains with vinegar, then rub the spot with a paste made from equal parts vinegar and baking soda. You can add a couple tablespoons each of vinegar and laundry detergent to a bucket of water and soak the garment overnight ​if the stain persists. No rinsing required.

Answer format: solution1/solution2
Answer: solution1