In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".

[header] How to make a compost tea [title] Dechlorinate your tap water. [step] You'll need around 3 gallons (11 l) of water to make the tea. Let the water sit out in the sun and fresh air for several hours. <sep> (A) For the most satisfying tasting tea, dechlorination may be your choice. This is as simple as checking with a local water supplier. (B) Air humidifiers are best as they can collect water, but you can also buy air filtration devices to use if the time is right to dechlorinate your system. [substeps] Using a pot or kettle to dechlorinate the water can help dissolve debris in the water. (C) The organic product will help counteract the sulfates and ammonia, while reducing the taste of the mixture. If you're doing this yourself, check the package for instructions on how to dechlorinate the water. (D) This will allow any chlorine in the water to break down, because chlorine will kill the beneficial bacteria in the compost tea. [substeps] You don't have to aerate the water if you're using well water or another water source that doesn't contain chlorine.
D