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". 

Example Input: [header] How to perform well during an exam or test [title] Take notes during class and study beforehand. [title] Read the instructions. [step] This is the first most important thing to do. <sep> (A) Calm yourself down as much as possible and read through the instructions. Start with your name or student id, and fill out any other required housekeeping information at the beginning. (B) It is hard to memorize the information, and if you don't read the directions for the exams there will be no reason to do well. It is also important to note everything that is included in the curriculum. (C) Take note as the teacher talks and when you read questions. Always try to remember what the instructions are for when the teacher gives them. (D) [title] Write up your test or paper ahead of time, but take no more than a few hundred notes. [step] Make sure you only memorize groups and empirical examples.
Example Output: A

Example Input: [header] How to dry a dog [title] Allow the dog to air dry naturally. [step] This is the easiest and most enjoyable way for the dog to dry. After getting wet, the natural reaction of many dogs is to shake from side to side with great vigor to release the water. <sep> (A) Dry the dog by waving a towel near the dog and holding it in front of him as you shake. Dry dogs naturally shake after an accident, while dirty dogs are especially prone to shake from side to side. (B) This helps air to flow through the dog's body and speeds the drying process. [substeps] Letting your dog dry upside down with its chest out can help with this. (C) In less than 4 seconds of shaking, dogs can shake up to 70% of the water from their fur. [title] Stand back and allow the dog to shake the water from his or her fur. (D) To encourage this, your dog has to naturally dry themselves faster because you are taking a short nap before allowing him to dry itself. [substeps] Wait until after a shower or bath to air dry your dog.
Example Output: C

Example Input: [header] How to wear dresses with boots [title] Match the boots with the style of the dress. [step] Try to pair the style of boots with the style of dress you're wearing. For example, a pair of chunky, motorcycle boots wouldn't work well with a light, flowing dress, but they would work well with a leather dress. <sep> (A) [title] Choose a form-fitting boot for snow boosts. [step] This is a great option for mountain walking, but it doesn't work with snow biking. (B) The boots part should begin somewhere around the ankle and end around the small of the back of the dress. [substeps] Pair a fitted dress with a structured blazer for a bit of bohemian chic and an oversized blouse for a more professional look. (C) Rather than wearing regular dress dress shoes, pair a pair of high-heeled boots with the style of the dress. [title] Wear motorcycle boots with a business casual or work casual outfit. (D) Also, a pair of brown ankle boots wouldn't look good with a leather dress, but they would work well with a light, flowing dress. [title] Wear boots that are formal or casual enough for the occasion.
Example Output:
D