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 play pickle [title] Find at least four people and a tennis ball. [step] The more, the better. Why four? You need two ends and at least two runners. <sep> (A) [title] Play the game in single player mode. [step] The alies are the team in the side hole versus the same person. (B) You could have one runner, but the game would become boring very quickly. If you can't find a tennis ball, another small ball that is not too hard will work fine. (C) [title] Try to find a pair at least. [step] Whether that be your male and female runner or a typical player, that way you will have at least a couple of runners. (D) Two of these runners will be running towards the other person. Three players should be comfortable running any distance.
Solution:
B