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".

Ex Input:
[header] How to buy wine for a gift [title] Go mid-range to high end. [step] It's tempting to buy a cheap wine to give as a gift, particularly if you don't know much about wines. However, cheap wine will taste cheap. <sep> (A) Buy the cheapest wines possible at low prices for a lot of fun and a nice gift. [substeps] Vintage wine is well worth the cost, but it won't taste well if you're not buying the bottle. (B) A higher end wine will go right up top and faster, so full quantities have more potential to go up the price of a bottle. [substeps] Anyway, consider your palate when determining whether a bottle is a good choice for your party. (C) [substeps] Spend time visiting upscale restaurants near your destination and learn about wines on your visits. Ask for the wine they recommend to see if you can trade it for cheaper. (D) That's not to say that you can't get a decent wine for a reasonable price. You just don't want to pick the cheapest wine, especially if you've never tasted it yourself.

Ex Output:
D

Ex 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.

Ex Output:
C

Ex Input:
[header] How to perform a quick visual imagery relaxation exercise [title] Sit comfortably in your chair with your feet flat on the floor. [step] Place your hands palm facing up in your lap. [title] Close your eyes. <sep> (A) [step] Pretend that the bottom of your chair is closed and then slowly open your eyes again to focus on the visualization. You're almost ready to start this exercise when the image of a star fills your mind. (B) [step] Don't hold those thoughts for too long. Try guided visualization in which you imagine things that have happened before. (C) [step] Place your index and middle fingers against your eyes, but don't keep them there. [substeps] You might even want to squeeze your eyes shut to partially block out sound. (D) [step] Take a deep breath in, hold it for a second, then blow it out, completely emptying your lungs. Continue to breathe deeply, paying attention to each breath.

Ex Output:
D