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". 

[EX Q]: [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.
[EX A]: D

[EX Q]: [header] How to use psychology to close more sales [title] Give something for free. [step] The principle of reciprocation is a psychological phenomenon described by dr. robert cialdini, an expert in persuasion. According to this theory, it is part of human nature to feel obligated to repay debts of all kinds, big and small. <sep> (A) To begin this process, ask yourself if you really are willing to sell something for free. If you are willing to throw in the money, then you are probably willing to take credit. (B) You can't force anything on someone else. [substeps] If you " feel " obligation to a friend or loved one, give them something to ask you " if i use this method, what will happen? " [title] Assemble your argument. (C) If someone receives something free, they will feel a psychological urge to purchase a product to pay you back for your kindness. [substeps] Offer a free trial period, a sample, or even a pleasant experience. (D) To do this you must pay for or at least accept the full offer. After that you must devise a plan of compensation.
[EX A]: C

[EX Q]: [header] How to unlock an lg optimus [title] Get the imei code of your phone. [step] Mobile phones, including optimus units, are assigned with special codes called imei (international mobile equipment identity) that are generally used for identification purposes. To get your phone's imei, enter * 06 on your phone using its on-screen keypad. <sep> (A) The imei code will be displayed on the screen; make a note of it. [substeps] You can also check the back of your phone. (B) Once your phone has its imei code, you'll need to print it out. [substeps] You'll also need it to unlock the app. (C) [substeps] As of 2017, the imei code requirement is not greatly listed on the device. [title] Walk away from your device when prompted. (D) For imei codes 5 , 6, and 8, the imei code is 6407.111.xx or 6407.111. [title] Make sure your phone is charged before proceeding.
[EX A]:
A