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 surrender a dog [title] Research a shelter. [step] If you want to give your pet to a shelter, research the right one for your dog. Most shelters are overrun with pets, which means that they have no room for new pets. <sep> (A) While a shelter may be situated adequately in an area where your dog needs more positive attention, it must also be filled with between 5 and 12 pups. [substeps] For example, some shelters allow dogs to stay on board while others charge a fee. (B) However, you should also research a variety of people who might be able to help the dog, including : [substeps] Rescue organizations to post fliers for fundraising events adoption clinic (if available ) [title] Adopt a dog from a shelter. [step] For many breeders, shelters simply allow dogs to live once a year or so. (C) Similar to pet rescue, shelter shelters help your dog meet new people, and take turns encouraging you to introduce him or her to new types of people. There are numerous reasons for offering your dog to shelters, including : [substeps] Not wanting to hurt someone is not a good idea. (D) Make sure the shelter you are looking into has a no-kill policy. Shelters that have kill policies typically can only give new pets seven days to find a new home before they are killed.
A:
D