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: [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 solution: D
Example explanation: This is a good example. Only option D is about Christmas trees. So, it's the correct option.

Problem: [header] How to wash and reproof waterproof jackets and trousers [title] For jackets : [step] Jackets have to be washed with proper care. The following steps will make it clear on how to wash your jacket : [substeps] Check for any unwanted material in the jacket pockets and remove them. Now close all the zippers and velcro flaps present in your jacket. <sep> (A) On white jackets: this turns them light gray color and finishes them. They protect the jacket from white spray paint, leaving them brightly colored for a stylish and useful alternative to a casual jacket. (B) Click the back of the jacket and then slide the lid, called the " cover, " all the way to the top of the zipper, to close. You'll need an adapter with a small socket that is plugged into one of the back openings. (C) Untwist or loosen any pockets in the jacket. Inspect the jacket for any loose threads or tears. (D) This is to ensure that nothing unwanted goes in or comes outside while washing. Dry-brush the jacket with a soft bristled nail brush or a toothbrush to remove any mud, grease or any easily removable stains.

Solution: D