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". 

Input: Consider Input: A police officer is riding a horse down the street very slowly. many bystanders <sep> (A) cheer as he gets closer. (B) are walking by, cars are passing and casually moving along. (C) are standing up nearby. (D) join in to help him, and several other cars come along.

Output: B


Input: Consider Input: [header] How to stop eating at night [title] Know the difference between emotional and physical hunger. [step] Sometimes we eat at night because we are genuinely hungry, especially if we deprive ourselves of calories throughout the day. Other times, nighttime eating is due to emotional hunger. <sep> (A) Identifying whether your nighttime eating is physical or emotional is an important step in dealing with the problem. [substeps] Does your hunger come on suddenly or gradually? Emotional hunger is more likely to manifest itself in the form of a sudden craving. (B) For example, when you're caught up on a project, you may think you have to eat too much and constantly think about your dinner plans, and you may let emotional hunger take over. [substeps] However, on the other hand, we may also be unconsciously hungry when we're bored or stressed. (C) Knowing the difference between emotional and physical hunger can help you learn to cope with your emotional eating. [substeps] Emotional hunger originates from feelings like physical aches, pains, hunger pangs, anxiety, sadness, depression and anger. (D) [substeps] For example, something as simple as indulging in peanut butter can be loaded with a meal low in calories. If this occurs, feel free to splurge on food you're actually craving for more impact.

Output: A


Input: Consider Input: [header] How to feed koi [title] Choose a quality pellet. [step] When deciding what to feed your koi, think of it in two parts-base diet and supplementary diet. The base diet should provide all the essential proteins, fats, and most of the vitamins and minerals your koi need to survive. <sep> (A) Find a reputable seller of a good live pellet. Choose a type that will balance the nutritional value of your aquarium. (B) Base diet should provide 56% of these nutrients, while supplementary diet should provide no or no protein at all. [substeps] Fiber is an important nutrient for your species, as is calcium and phosphate. (C) Commercial pellet food is the most reliable, convenient, and healthy option for a base diet. [substeps] The protein content in food pellets should be at least 30 percent. (D) In addition, base diet does not provide everything your koi need so you'll need to adjust your overall diet to suit your size, breed, and activity level. [substeps] High quality fish, such as shiti and haddock, should be fed every two days.


Output: C