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 bowl a strike [title] Determine whether you will be using a " house ball " or will be buying your own. [step] Most people start with a " house ball " and " house shoes " as this is the cheapest option. There are normally many " house balls " to choose from and these are supplied, free-of-charge, by the bowling alley. <sep> (A) [title] Make sure your ball fits well and has soft pads placed above the balls, perhaps. [step] This will allow you to let the bowler have a warm foot against the ball because some people like to quickly remove the pads in advance of the strike. (B) If you get the option, go for it. A house ball is a practice ball that your coach will teach you, so don't feel like you need one. (C) [title] If you want to buy your own balls, just read the careers section of some of the local bowling websites. [step] If not, go ahead and do it. (D) Shoes may be rented for one price which covers your entire bowling session. [substeps] The other option is get your own ball and have it custom-fitted to your hand for your individual swing and release.
Solution:
D