You will be given a definition of a task first, then some input of the task.
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".

[header] How to monitor a horse's weight in winter [title] Condition score the horse. [step] Condition scoring is a process in which you assess the amount of fat the horse has on it. Condition scoring requires that you look at and feel the horse's body and assess the amount of fat it is carrying in specific areas. <sep> (A) [substeps] For example, look at the mane (face), withers, saddle, gullet, shoulder blades, or hips. Measure the horse from the base of the horse's neck to the tip of the withers (body). (B) With condition scoring, you can evaluate whether the horse is in ideal condition or not. [substeps] Once you look at and feel an area, you will write down your assessment in a chart made specifically for condition scoring. (C) This allows for more accurate assessment and treating the horse in winter when it is no longer at risk of injury. [substeps] The horse's body should contain no fat content, unless of course it is about as moderately covered with fat as it normally would be during the colder winter months. (D) Determine if the horse is heavy in calf growth and if it is weighing substantially more than it is comfortable with handling. If the horse is overweight, it is a blood disordered horse and is not happy to be ridden.
Output:
B