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 blend essential oils [title] Determine what type of scent you want. [step] Different types of scents are often used to alleviate different issues. Think about what type of scent you want. <sep> (A) For example, do you like strong smells? Strong scents are great for you to combine with other companies and produce oils. [substeps] There are five essential oils available to learn about. (B) [substeps] Lavender is often used to relieve symptoms of anxiety, stress, and other symptoms related to psychopathy. Anime has a similar scent to anime or peppermint, with a deep indigo base. (C) [substeps] Natural fragrances may vary from person to person, and there is no perfect ratio of preservative to fragrance. Some people would prefer diluted scents to heavily diluted scents. (D) There are general categories of essential oil scent, and oils in any one category tend to mix well with their own kind. That said, you can mix scents from different categories.
D