instruction:
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". 
question:
[header] How to root the nexus 7 [title] Back up all information on your nexus 7 tablet. [step] All personal data will be erased from your tablet during the rooting process. [substeps] Sync your personal information with google's servers, copy your data over to your computer, or download a third-party cloud storage service app from google play store. <sep> (A) [title] Navigate to the wugfresh website at http: // www.wugfresh.com/nrt /. [title] Select the option to download the nexus root toolkit. (B) Open a folder that houses your cellular data, save the data you want to share and tap backup to backup it to your computer. [title] Follow the on-screen instructions for rooting. (C) [title] Install os x 10.1 on your tablet. [step] After installation, simply tap the " windows " icon on the home screen. (D) If you have a gigabyte device, your tablet will search your phone's applications folder for a root disk that will be used for rooting. [title] Download the latest android root installer.
answer:
A


question:
[header] How to ride the toronto subway [title] Use the ttc trip planner. [step] The toronto transit commission (ttc) offers a helpful trip planner on its website. Simply enter your starting point and destination into the appropriate fields, then set your departure or arrival time. <sep> (A) [substeps] To make the trip more convenient, you may enter new york city during the day. For a more convenient route, you can install a new york subway monitoring app on your phone or tablet. (B) [substeps] Search for your nearest ttc station and check for the train you'll be scheduled to take. If your train is local or you're traveling by car, check the transportation schedules and online signs to find one. (C) [substeps] Due to the poor travel times and tourist costs, ttc trips often take 30 minutes or less on weekdays and 45 minutes once throughout the week. Ttc only prolongs this travel time in the 21st century. (D) The planner will let you know which train to take and when to catch one that fits your schedule. [substeps] You can find the trip planner here: http: // ttc.ca/trip _ planner/index.
answer:
D


question:
[header] How to train dogs to leave chickens alone [title] Spend time with the dog outside. [step] As the two of you are outdoors together, aim to get close to the chickens. Introduce the dog to the chickens only when the dog is on a leash. <sep> (A) It's a good idea to sit near or among the chickens, talking to them gently and to the dog gently too, keeping everything as calm as possible. If the dog can see that you care about the chickens and treat them as important, it may realize that the chickens are off bounds. (B) The dog should not chase after the chickens or fear them in any way. [substeps] Provide enough space for the dog to position its body more towards them than away from it. (C) You don't need to worry about the dog's safety while you are inside the coop. However, your dog needs to know that it's safe when the chickens are around. (D) If you stay indoors with your flock, the chickens will be more interested in returning without you, and therefore expose you to chicken. But even then, you should try not to be too aggressive, as eventually the dog will get used to you and won't prefer to spend time with you in enclosed areas.
answer:

A