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".

Example input: [header] How to create a christmas tree forest [title] Consider the type of tree you want to plant. [step] There are a wide variety of christmas trees and include fir, pine, spruce, cypress, and cedar. These trees thrive in different climates and look different from one another. <sep> (A) It is important to research the tree before setting up your tree to try it out to make sure you can write the tree's growing season so that you can get the most supplies you need. If you're just interested in having a tree stand out, then make sure to check for the following : [substeps] Spruce trees. (B) [substeps] Trees green may be used in a mix of green and evergreen. Greens, such as pintos and olive oil, may be more delicate than these. (C) Where the trees grow together is up to you. [substeps] Spruce trees light up the night for hours in the morning and drown out the morning sunrise between afternoons. (D) Think about where your tree forest will be located and choose a tree that can thrive in that climate. [substeps] Balsam firs are a popular christmas tree species that grow in the northern united states and canada, in hardiness zones 3-5 or states like minnesota, north dakota, and montana.
Example output: D
Example explanation: This is a good example. Only option D is about Christmas trees. So, it's the correct option.
Q: [header] How to get rid of threadworms [title] Take one dose of an anti-worm medication. [step] Your doctor will prescribe (or recommend an over-the-counter version of) an anti-worm medication. Some examples include mebendazole, pyrantel permeate, and albendazole. <sep> (A) [substeps] Do not get more than the recommended dose if you have a disease that requires ibs. It will be nearly impossible to treat these conditions until your reproductive organ is redeveloping and is strong enough to handle the medication, though this may take several months. (B) You will be directed to take one dose of one of these medications (follow the specific instructions of your doctor) and then to wait two weeks. [substeps] The way this medication works is that it kills off any adult worms. (C) Other medicines that are advertised as " anti-worm-free " or " astringent " include lysol, deoxicant, and baisoup. [substeps] Do not get more than a few doses of an anti-worm medication. (D) These anti-worm medications are often administered orally or injected twice a day (usually by injection). [substeps] You can usually get these antivirals in capsule form or in pill form at your local pharmacy.
A:
B