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 start a good conversation [title] Make the person feel like you care. [step] You can turn a total stranger into a friend just by making him feel like you care about what he has to say and that his opinion matters to you. If the person thinks you're talking just to hear your own voice, he'll be turned off immediately. <sep> (A) Make sure to be yourself as well--it's important that you show the person your worth. [title] Make sure you're a good listener. (B) Just making the person feel like you really care about him will make him forget his feelings and will also show him you don't care what other people think about him. [substeps] Make it known that you do care about him without ever saying so. (C) Instead, turn your body and focus toward that person and maintain eye contact without being too intense. Give the person enough personal space, but show that the person has your attention. (D) Keeping your voice soft and sincere will instantly make the person feel at ease and thus more willing to start a conversation. [substeps] Remember that just because someone has said something nice to you, it's a verbal invitation, not a direct action.

Ex Output:
C


Ex Input:
A man shows how to change a tube in a tire. he <sep> (A) puts a jack under the tube to lift it up. (B) puts a new tire on the tube. (C) takes the old tube out, puts the new one in, then pumps it up. (D) moves dirt covering the tube.

Ex Output:
C


Ex Input:
[header] How to oxidize a gummy bear [title] Wear eye protection (goggles or lab glasses), a lab coat, nitrile gloves, and a face mask. [title] Wear pants that cover the entire leg. [substeps] Shorts or skirts are not acceptable. <sep> (A) Understand that if you intend to cook your bear, you must wear either pants, skirts or leggings in preparation. [title] Cook on high heat for 20 minutes and add one tablespoon of soy sauce. (B) Avoid denim, since it can dull the coloring if you use this very often. [title] Put a shoe or step onto the inside of the can, this will open up more vapor. (C) A pinwheel enthusiast does not wear any shorts. [title] Cover the hands with plastic clamps. (D) [title] Wear only closed toed shoes that cover the entire foot. [substeps] Sandals or open-toed shoes are not acceptable.

Ex Output:

D


