instruction:
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". 
question:
A man demonstrates how to walk across and navigate a slackline in a grass courtyard in front of apartments. the man <sep> (A) demonstrates how to traverse a low brick fence on a residential street. (B) walks slowly across the slackline while talking and stopping to talk to passerbys. (C) stands on a slackline balancing himself with his arms before the clip cuts to him interviewing. (D) poles backward, glasses on and he begins to walk while holding the slackline while walking across the courtyard.
answer:
C


question:
[header] How to carry a hedgehog [title] Don't be nervous. [step] Hedgehogs are great at sensing fear, and if you are scared and nervous, they will be scared and nervous, making it a bad experience for everyone. [title] If you are going to handle a hedgehog, pick it up. <sep> (A) [step] Grasp its tail firmly with two hands placed on either side of its spine and hoist it up on a sturdy, sturdy surface. [title] Hold your hedgehog's whiskers on the inside of your hand. (B) [step] This is a relatively simple thing to handle-a hedgehog can bite you if you touch it. Instead, just hold it close to your body, and let go, be aware of how many times you are holding your pet. (C) [step] Place your hand on the animal's shoulder, gently turn its head towards you, and release a calming word. Walk slowly around the hedgehog, holding the animal securely and gently holding the neck and head. (D) [step] Don't mess around and try to poke it awake or make it aware of your presence by hovering your hand. Hedgehogs are prey animals with poor eyesight, and this is seen as a threatening gesture.
answer:
D


question:
[header] How to know if your dental fillings need replacing [title] Watch for tooth sensitivity. [step] If you have fillings that need replacement, you'll likely feel it first. Paying attention to the physical symptoms of old or decaying fillings can let you know if it's time to have your dentist replace them. <sep> (A) One sign that your fillings may need replacing is if you have tooth sensitivity to temperature, sweets, or pressure. [substeps] Pay attention when you bite into any cold, hot, or sweet foods. (B) Teeth sensitivity occurs when gums become severely stained with white blood. These white discolorations are mainly due to gum disease, but most commonly introduce a white blood cell colony to the side of your mouth. (C) Once your doctor notices an increase in tooth sensitivity, he or she can return you to the dentist. [substeps] Are your teeth hurt or moist? Severe tooth pain, cramping, sensitivity, or tingling are all signs that they need replacement. (D) [substeps] Bad tooth sensitivity is usually not a problem until it gets worse and you start to feel pain. You may experience sensitivity at night and bad teeth at the same time.
answer:

A