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: This video allows viewers to hear the testimony of a customer who has used the pro roofing service. First the man tells how he heard about the service and how great it is. he <sep> (A) also says that he chose pro roofing because the neighbors chose it and persuaded him by telling how great the service is. (B) gets the materials to do the job and is joined by a group of small children who are drinking lemonade at the lemonade stand and talking. (C) starts by explaining how he is going to first tell the detail of creating a casing using an iron, then he starts on eggs and bacon. (D) talks about some graphic details.

Output: A

Input: Consider Input: [header] How to train chickens [title] Use treats to motivate your chickens. [step] Chickens love food, so treats are good for reinforcing the behavior you're trying to teach them. When training your chickens, give them a treat after they do something right. <sep> (A) While trotting your chicken, offer them treats like carrots. Because you can literally feed them, birds will feel good being shown treats. (B) If you don't have treats at home, you can also play a game of fetch or running around with your chickens until they give you the treat. [title] Hold your chickens while you're training them. (C) If possible, give it after every meal, otherwise the chickens will eat the treats. [substeps] Food treats are also used to reinforce your chickens' behavior. (D) Try to use treats that are different than their regular food. Some easy treats that chickens love are dried mealworms, bird seed, fruits, and vegetables.

Output: D

Input: Consider Input: [header] How to travel during the holidays for seniors [title] Choose the right time of day for travel. [step] If you're older, you may not be able to stay awake for late nights or get up very early in the morning. Choose travel times that work for your energy level to assure a safe trip. <sep> (A) [substeps] Mid-morning or afternoon departure times may work best if you're a senior. If you're driving yourself, plan to drive around this time of day. (B) [substeps] Try planning your travel time between january and april at an average time for most seniors. This applies to senior seniors when these times are quite busy. (C) [substeps] You may opt to go on longer trips if you have patients with you, or if you are in an emergency situation. You may also choose to go on shorter trips if you have other patients with you. (D) [title] Seek the right electrolyte to keep you awake. [step] Most senior people need no more than 100 milligrams of caffeine or something in their morning cup (for example, coffee or tea).
Output: A