Please choose the correct solution to the question: How do I use citric acid to clean a coffee pot?

Solution1: Fill the reservoir of a clean coffee maker with 6 cups of water and add 2 teaspoons of citric acid powder and brew.

Solution2: Fill the reservoir of a clean coffee maker with 6 ounces of water and add 2 teaspoons of citric acid powder and brew.

Answer format: solution1/solution2
Answer: solution1