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:
We see the man sitting on the floor talking to a camera. We see the man illustrating break dance moves. The man is talking and sitting still. we <sep> (A) see the man walking through the crowd at room 15 taking pictures. (B) see the man dance fast. (C) see the closing screen and a lady walks into frame. (D) see the following title screen.

Ex Output:
B


Ex Input:
[header] How to visit the top 10 tourist destinations in london [title] If you are planning to visit london why not try visiting the following must-see places? [title] Visit the british museum at great russell street. The british museum's art collection includes artworks from all over the world. [step] The british museum houses the rosetta stone, sculptures from parthenon, and the portland vase. <sep> (A) Visit art galleries, amazing places, and places which you have never been. [substeps] Do not forget to ask for drivers from the london lights station, trinity quarter , 121 lights avenue-this is the only modern route to london. (B) The british museum is considered as one of the best in the world and it was established in 1753 via the act of parliament. The first collections were from sir hans sloane. (C) They are also accessible by either gps or facebook. [substeps] If you are going to the london museum, press the' get started' button. (D) Occasionally you may see art museums in london that serve as places to observe british history-like the australian museum. [title] Then take the ferry from oxford to mcdonald's, the capital city of london.

Ex Output:
B


Ex Input:
[header] How to diagnose an overactive bladder [title] Pay attention to incontinence. [step] If you feel like you need to rush to the restroom and have a sudden urge to urinate, you're experiencing " urgency incontinence. " it may feel like you can't control your bladder. <sep> (A) This is a classic symptom of overactive bladder. [substeps] Urgency incontinence is different from stress incontinence. (B) Although it may seem sudden, it is often worse than anything you are feeling. Even small incontinence can be a sign of an overactive bladder. (C) You may also feel like you need to use the bathroom to get something, such as water. Pay attention to whether your feelings worsen when you feel like you need to pee, or if you feel whatever you are experiencing at least regularly. (D) You may feel all over-full or hard. [title] Be aware that bladder incontinence can happen suddenly and quickly.

Ex Output:

A