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:
The people start the race behind a closed and grated fence, which then opens and allows them to start racing from an elevated platform down onto the paved raceway. the racers <sep> (A) pedal with one person in a white jacket in the lead. (B) pass snow covered stands along a hilly road up above the as they ride up the hill past the tight stands and sandy roads of the garage. (C) sit against the wall on the track as they wait for the race to start. (D) pass through gaps while the passengers attempts to stay ahead.

Ex Output:
A

Ex Input:
[header] How to encourage an autistic person's special interests [title] Check out library books relating to their interest. [step] They can read about their favorite things at their own leisure, without the expense of constantly buying new books. [title] Buy gifts related to the latest interest. <sep> (A) [step] This can be something as simple as fancy designs, or will also be something that you know they'll like. Could be a cool summer smell, a killer crocheted sweater, a great cake recipe, for instance. (B) [step] One good thing you can buy is a stuffed animal. They can attach a cute sign on the front, telling the person where to place the gift. (C) [step] This can be anything from toy birthday items to brochures, catalogs, trophies, and similar. [substeps] Smile at each child when asking them for their gift. (D) [step] This will ensure that they like whatever you give them, and they will feel understood and appreciated. Here are some examples of good gifts : [substeps] Arts and craft kits (e.g.

Ex Output:
D

Ex Input:
[header] How to improve your online dating profile [title] Take a look at your photos. [substeps] Do the photos best represent you? Do you even have photos up? It's important to post pictures since most members will only look at profiles with photos. It's also important to upload your best quality photos. <sep> (A) There will be celebrities and events or events that affect your relationship over time. You will need to do a little research before you begin looking at your pictures. (B) If you like your photos but they aren't as good as someone else's, try tagging them on wikipedia and then reposting them at your whim. Also, if your photos make you feel very underinspired, consider permanently twitter posting them. (C) Otherwise, you're taking a gamble with potential hook-ups who may pass on you solely based on a bad picture. If you've had the same photos up for awhile, upload new ones. (D) It's advisable to use the most common profile pictures, like your corporate profiles. If you are using a computer, you can quickly see and upload your photos.

Ex Output:
C