Write the next sentence in the following story.

How to clean a hot water dispenser
Wet a cloth with a cleaning solution.
Generally, a mild cleaning solution will do. For instance, you can add a dash of dishwashing soap to 4 cups of water (about a liter).

Pick your answer from: A). In a closed shower, warm water saturates the cloth and will plug up the hot water spots. You can also wet a paper towel with a wet substrate cleaning solution.. B). Use soap specifically designed for cleaning cloth buckets. Too much salt can contaminate hot water.. C). That's it; an unlimited amount. Dip a towel in the solution, then wring it out.. D). Mix it up, then dip your rag in it to wet it. Skip bleach solutions, particularly on stainless steel... The answer should be
D).