You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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 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.
Solution: D
Why? This is a good example. Only option D is about Christmas trees. So, it's the correct option.

New input: [header] How to pack a first aid kit for a hike [title] Pack all prescription medications. [step] Any medications that you require on a regular basis should go with you on your hike. These items will not be available in the wilderness, or usually even in a general store, so it is better to be safe than sorry. <sep> (A) This even applies if you anticipate being back from your hike in time. [substeps] Prescription pill packaging can often be bulky. (B) [substeps] If you plan to use any medications, be sure to stock up well ahead of time. Packing antidepressants is extremely important. (C) Choose common medications in this area and always follow the manufacturer's instructions, including the following : [substeps] Denatured alcohol (. 40 g for most people) aspirin or ibuprofen lozenge [title] Bring for part of the trip. (D) [substeps] Regardless of where you choose to drink or eat, take all prescription medications in the same order they are normally put in your kit. [title] Pack weighted-duty lighter fluid bottles.
Solution:
A