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". 

[Q]: [header] How to export contacts from outlook 2010 [title] Open your outlook 2010 program. [step] Wait for all your data to load. [title] Click the file tab on the top outlook toolbar. <sep> (A) [step] This is in the " import " menu. If you don't see all of your contacts, keep scrolling down until you find the " export individual " button. (B) [step] Select " options " in the dropdown menu. [title] Choose " advanced " from the tabs in the left hand column of the dialog box. (C) [step] An outline of the project should appear. [title] Select the import only option in the drop-down. (D) [step] On the top toolbar, click " import data from wizard. " [title] Click the name of the personal notification panel you would like to import from the list of personal notification panel files in your outlook 2010 program.
[A]: B


[Q]: [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.
[A]: A


[Q]: [header] How to be a great sleepover host [title] Prepare. [step] Make sure you have music, movies, games and other activities available for your guests. [title] Show them around the house. <sep> (A) [step] When guests arrive, give them a tour of the house; show them where the bathroom and the phone are, in case of any emergencies. Also tell them the " off limits areas " such as parents rooms, studies, siblings rooms, or any other room your parents don't want people barging in. (B) [step] Give them a check for which rooms are guest only. [title] Make a good first impression by greeting each guest in the hall. (C) [step] Ask them if the sleepover is exclusive and if people are coming the night of. Include everything the sleepover contains, including things like all the bathrooms, playgrounds, food, beds, mini bathrooms etc. (D) [step] Make sure people stay overnight, so none of the guests could leave undetermined. [title] Make sure guests can enter and exit the house.
[A]:
A