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:
Young boy talks to camera in front of drum set in a studio. young boy <sep> (A) plays on the drum set, and the cymbals, while intermittently speaking to the camera. (B) starts taking steps standing on a pedal holding a tool an trying to play an instrument. (C) drum set talk to camera and hold a dummy and cymbals. (D) starts unpacking drum set drum set as the camera captures his movements.

Ex Output:
A


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 make a wreath with crepe paper [title] Obtain a plastic ring. [step] Plastic rings are readily available at a market, stores and shops or you may find it in your collection of dumped items, if you collect dumped items. [title] Obtain a suitable piece of foam to form the base of your wreath. <sep> (A) [step] These are available at markets, stores and shops or may be bought online. [title] Cut the foam from the center, and bisect it from the middle (as shown in the picture). (B) [step] The big, black one you've seen on christmas trees. This type of foam is good for the main structure of your wreath, since it's very flexible and easy to work with. (C) [step] It is important that you place a bucket of water on it to encourage the foam to rise, spread, fill, and escape. The more water you use, the firmer your wreath will be. (D) [step] Use a rotary craft tip and a router this will ensure you place the wreath on stable material, not flat surfaces or smooth surfaces. You may also use two spoons to form the base, hand the materials onto the foam, then glue in place.

Ex Output:

A