Detailed Instructions: 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".
Q: [header] How to make a natural dog flea massage oil [title] Check the ingredients list below and go shopping. [step] Health food stores are most likely your best source for the ingredients. [title] Place the sunflower oil into a glass or ceramic bowl (metallic bowls may react with some of the ingredients). <sep> (A) [title] Add all the essential oils and blend well. [step] It's that easy-now you have the massage oil. (B) [step] Hold it under running water for at least 30 seconds. [title] Add the oats, sunflower seeds, tapioca and cinnamon sugar. (C) [step] Alternatively, you can use a sturdy, glass jar. [title] Stir the oil until it thickens. (D) [step] Mix the ingredients around with the spoon; the mixture will remain richer than the other ingredients, and thus is less likely to run. [title] Add the oregano, peppermint leaves and crushed sage seeds to the oil.
A:
A