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 Input:
[header] How to travel abroad [title] Do your research. [step] You need to research where you are going, the flight times and prices for airlines, and which documents you need to take with you. Plan out your itinerary carefully. <sep> (A) Some cities, like london or paris, really need a week to see what they have to offer. Travel times also need to be taken into consideration. (B) For example, visit a couple of websites of airlines to see what type of itinerary they offer. Pay attention to the price, name, phone number and/or mailing address of each airline. (C) This will help ensure that all of your research enables you to see where you want to go. [substeps] Do research on an airline's website, and see what seat guides they offer on planes and what websites they provide online. (D) [title] Decide whether you will be flying from 1 area or from another. [step] International flights should likely be just a teaser.

Ex Output:
A


Ex Input:
[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.

Ex Output:
B


Ex Input:
Several cars are shown at a car wash. One man is vacuuming cars. another man <sep> (A) is fixing the cars. (B) washes a car off the side of a forest. (C) joins them, then shows off his car. (D) is wiping the cars down with rags.

Ex Output:

D