Given the task definition and input, reply with output. 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 treat a yeast infection naturally [title] Try a boric acid suppository. [step] Boric acid can be a good home treatment for a yeast infection, as it is antifungal and antiseptic. Boric acid has also been shown to prevent the growth of yeast. <sep> (A) [substeps] Following the dietary guidelines for women, boric acid suppositories need to be diluted with acids or lemon juice to be safe for adults. With a home remedy, use galactoconazole, which is available over the counter as an oral antibiotic. (B) You can use boric acid in the form of a suppository capsule and apply it twice a day for one week into your vagina. [substeps] Never apply boric acid powder directly to your vagina or your skin, as it can irritate these areas. (C) [substeps] Boric acid suppositories differ in how effective they are at killing the fungus. Some ants, bees, and beetles sometimes spread boric acid directly through the skin. (D) [substeps] Boric acid suppositories can be purchased over the counter at most pharmacies or some grocery stores. Some men may incorporate boric acid suppositories into their daily meals.

B