Detailed Instructions: 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".
Q: [header] How to sleep in class [title] Slip on a hoodie to hide your face from the side and front. [step] If you're wearing a hooded sweatshirt, lean forward a bit and pull on your hood. Your eyes will be shielded from both the sides and the front, making it a great, natural-looking way to get a bit of sleep. <sep> (A) [title] Try to sleep on your side with your eyes stretched out in front of you. [step] If you're sleeping with a hood enabled, position your face so that your eye's are roughly side to side with your hood lifted up. (B) [substeps] You can either get a hood from the library, or take a cheap, homemade one from the drugstore. The drawback to swapping for a hood is you can sleep without the hood on. (C) [substeps] Look up your dress code rules or review the guidelines for that class to make sure you can wear your hood in class. If your teacher asks you to take your hood off, they'll realize you're asleep. (D) [title] Put a blanket over your head like a robe or hood. [step] If you're studying in the hallway, place a blanket under your head.
A:
C