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 train chickens to return to their coop [title] Prepare your chicken coop. [step] Before you can train your chickens to return to the coop in the evening, you need to ensure the coop is set up properly for your chickens. A basic chicken coop should provide at least twenty-four square feet of space and multiple places for chickens to perch. <sep> (A) To ensure proper lighting, you will need to buy a coop lamp or turn off the overhead light. You will also need to provide adequate heat. (B) Your chickens will probably also need a hutch, cart, or larder to keep them warm. All three features are important as you start building your chicken coop. (C) [substeps] Coop space should be compatible with how large or small your chickens may be. Don't space your chickens too close to each other. (D) [substeps] Make sure there is a plentiful supply of food and water inside the chicken coop. Wood beams mounted horizontally can provide good perching space for chickens.
D

[header] How to make modeling clay in a slow cooker [title] Preheat the slow cooker. [step] To ready your slow cooker for cooking the clay, it's important to preheat it. Plug it in, and set the temperature to low. <sep> (A) That will allow the slow cooker to heat up slowly. [substeps] While children can help with the measuring and mixing of the ingredients, an adult should handle preparing and heating the slow cooker. (B) Cover the slow cooker and leave it somewhere out of the way where it won't be disturbed as it cooks. Doing this early will make your clay easy to mix and smooth. (C) Avoid getting hot coals inside the slow cooker. [substeps] Make sure there are no ashes or scraps of food stuck onto the bottom of the slow cooker before cooking the clay. (D) Allow the slow cooker to heat up to about 325 degrees fahrenheit (260 degrees celsius) for 1 hour. [substeps] Do not allow the temperature to go above the cool bar when you shut the electric slow cooker.
A

[header] How to plan a dark tour or halloween vacation [title] Determine who will be going on the trip with you. [step] Whether friends or family, they should have an interest in the subject matter of the tour. It can be an unpleasant experience for them, yourself and anyone else along if one person is uncomfortable with the nature of the locations being visited. <sep> (A) Don't just ask anyone you respect to tag along-you'll overwhelm your entire guest list with people on the trip. Choose a group that you can speak to in person whenever you have some peace of mind. (B) [title] Involve anyone else going on the trip in the planning of it. [step] This will further generate interest and can be fun in its own right. (C) Also try introducing your parents with common interests to the group and setting up the outing so the group has easy access to activities they may not normally spend time doing. [title] Take into account the expected time for each group of people. (D) The trip should be pleasant and warm for all involved. [title] Decide whether you will take your dog or cat on a dark tour and if it will be longer.

B