Please choose the correct solution to the question: How to clean a dishwasher.

Solution1: Place a dishwasher safe bowl on the top rack of an empty dishwasher. Fill the bowl with white vinegar. Close the dishwasher and run a complete wash cycle on the coldest setting.

Solution2: Place a dishwasher safe bowl on the top rack of an empty dishwasher. Fill the bowl with white vinegar. Close the dishwasher and run a complete wash cycle on the hottest setting.

Answer format: solution1/solution2
Answer: solution2