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". 

Input: Consider Input: [header] How to buy a light kit for photography [title] Make a list of required and/or desired criteria for your light kit. [step] These features include whether you want lights arranged on the floor or ceiling, what kind of photography you will be doing, how many lights you will need, etc. [substeps] Floor studio lights and backgrounds can be transported and arranged on stands or supports. <sep> (A) You may want several different lighting items in one kit. There are many available but most of the light hardware items, like dimmer switches and binders or small set of battery-powered lights, should be picked up at a craft store. (B) Pointed, straight, or one-sided lights can be divided into categories and arranged on tables or on poles. [title] Purchase fixtures that fit the gender and the type of lighting and coloring range that you want to consider. (C) Ceiling lights are more expensive and must be on a rail system for positioning in a rectangular area while background rollers are mounted on the ceiling. Your type of photography can determine how much light you need. (D) Frame sizes can be adjusted to your personal preference depending on the size of your studio. Don't forget to read the product description as well.

Output: C


Input: Consider Input: [header] How to avoid the stomach flu [title] Wash your hands often. [step] Wash your hands carefully with soap and water for at least 20 seconds. Always wash your hands after going to the washroom and before and after handling food and eating. <sep> (A) Washing your hands is important, since if the way you handle and eat is bad (germs, bacteria, etc. ), your best chance at preventing the flu is by keeping your hands clean. (B) Don't attempt to dry or clean your hands on something other than a business table. [title] Wear long pants (not utility pants to wear running shoes with). (C) [substeps] It's a good idea to wash your hands between-and as many times as you go to the bathroom. This will help prevent an episode of nausea in the future, as well as allow your body time to shut down its internal defenses to fight off food, germs, and viruses. (D) This will help to prevent the spread of germs. Germs on your hands can get into your eyes, ears, and nose and make you sick.

Output: D


Input: Consider Input: [header] How to ease the pain of fibromyalgia [title] Eat as healthy as possible. [step] Having a poor diet may exacerbate stress and anxiety and this can stimulate pain and other symptoms of fibromyalgia. Making healthy food choices cannot only improve your overall health, but may relieve pain and other symptoms of the disorder. <sep> (A) [substeps] Start your diet by experimenting with different foods and things to find what makes you feel good. When your foods begin to be less healthy and you gain some weight, stop. (B) [title] Recognize what type of diet you need. [step] There are a variety of foods that are able to ease fibromyalgia, such as : [substeps] To lose weight: choose low-fiber and low-sugar foods. (C) [substeps] Consider following an anti-inflammatory diet. This can be helpful for conditions like fibromyalgia. (D) Most people including those suffering from fibromyalgia in their lives have nutrient-rich food choices available. [substeps] Keep a food diary where you record any changes in your eating habits.


Output: C