Definition: 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: [header] How to treat mild hypothermia [title] Check the person's body temperature. [step] If you have quick access to a thermometer, you can check the person's temperature. The typical body temperature usually sits around 98 f (36.7 c). <sep> (A) Mild hypothermia can manifest with a body temperature of 96-97.5 f (35.6-35.4 c). If it's lower than this, the hypothermia may be severe and you should seek medical help. (B) If you do not have access to a thermometer, call the national suicide prevention lifeline at 1-800-273-8255. [substeps] The person should generally have a body temperature close to this temperature, below 101 f (49.4 c). (C) This temperature regulates the amount of blood in the urine, which in turn helps to prevent it from reaching your liver. [substeps] The person who has cold symptoms will be about as cold as you are. (D) If you are traveling with someone suffering from mild hypothermia, it might be too cold. [substeps] Try calling emergency services if you notice a change in temperature.
Output:
A