instruction:
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".
question:
[header] How to have healthy kidneys [title] Stay hydrated. [step] Staying properly hydrated is one of the best ways to keep your kidneys healthy. Without adequate water, your kidneys can lose some of their ability to filter your blood, and may even become damaged over the course of your lifetime. <sep> (A) [substeps] Drinking water helps your kidneys flush sodium, urea, toxins, and waste out of your body. By staying properly hydrated, you can significantly reduce your risk of developing chronic kidney disease. (B) Aim to drink at least 8 fluid ounces of water every day. This will help reduce any additional fluid or waste in your system and will also allow you to more easily relieve the symptoms of kidney problems. (C) Insufficient water will contribute to poor kidney function, such as kidney failure and rheumatoid arthritis. Trying to drink water with no filter might cause further kidney damage. (D) [substeps] The best amount of water recommended by experts is 1 gallon a day (2.5 liters) each. Drink bottled water, but you don't need soda, fruit juices, or other non-carbonated beverages; opt for bottled water.
answer:
A

question:
[header] How to find out if a good friend is crushing on you [title] Pay attention to their posture when you're around. [step] If your friend is crushing on you, their body language will probably be more open, and they will usually stand with their body turned towards yours, even in a group. [substeps] If your friend has a relaxed posture, with their torso facing towards you, it's a sign that they feel at ease. <sep> (A) If their shoulders are hunched, they may be pressed against you. If they'll just stand in silence, it's a sign that they're not interested. (B) It may mean they like you or it may just mean they are comfortable being around you. Watch for signs that your friend's posture has changed around you. (C) They may also be putting down their phone or tapping their feet. [title] Observe how they look around you when talking to others. (D) They may look up at you a few times throughout a conversation and nod or smile occasionally to show that they trust you. [title] Pay attention to their general body language.
answer:
B

question:
[header] How to hide acne scars [title] Look for a scar removal formula. [step] There are many scar removal products available that may help to reduce the appearance of acne scars. You can apply these before you apply your makeup. <sep> (A) Go through your favorite recipes and select products that might help. Ask a local beauty store if they offer their own formulations and cream. (B) For best results, look for a product that : [substeps] Contains sunscreen, to protect your skin from sun damage. Hypoallergenic, to reduce the chance of an allergic reaction. (C) There are also several different types of acne scarring removal products that you can find at a pharmacy or beauty supply store. [substeps] Look for a product containing salicylic acid. (D) Pour 3 cups of clear cream over the scar and cover with a bandage or drop cloth. The cream will take a few minutes to heal, but will reduce the appearance of the scar.
answer:
B