Please choose the correct solution to the question: how to clean coffee maker

Solution1: Fill the water chamber to its full capacity with equal parts white vinegar and water. I used the carafe to measure equal parts of each. Run a half brew cycle: Start a brew cycle. Midway through the brew cycle, turn off the coffee maker and let it sit for an hour.

Solution2: Fill the water chamber to its full capacity with equal parts dish soap and water. I used the carafe to measure equal parts of each. Run a half brew cycle: Start a brew cycle. Midway through the brew cycle, turn off the coffee maker and let it sit for an hour.

Answer format: solution1/solution2
Answer: solution1