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:
We see a man in a driveway cleaning snow from his car. The man cleans the snow under his windshield wipers. we <sep> (A) see the old man's garage and what looks like a boat in the water. (B) see the building behind the car. (C) zoom in on the cabin. (D) see the mans silver car gliding by in the background.

Ex Output:
B


Ex Input:
[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.

Ex Output:
A


Ex Input:
[header] How to help your child manage stress [title] Offer your child help at all times. [step] A good way to reinforce your willingness to help your child manage stress offering unconditional love and support from you and other family members. Let your child know that you are available to talk and will help however you can. <sep> (A) This may mean inviting your child out for sweets, or telling your child to come over for an afternoon to talk. [substeps] One way to reinforce your love and support is by sharing the affection, reassurance, and comfort you offer your child. (B) [substeps] You might tell your child, " i know you are struggling " or " i know you and i can help. " another way to reinforce your role in the child's daily life is to offer unconditional love and support via other ways. (C) [substeps] Let them know they can call your number or e-mail you anytime when they are going through a crisis. Advise them that you know they are at risk and need to help them manage their emotions and ensure they have you available for their needs as well. (D) [substeps] Reinforce your love and willingness to help your child with stress support by repeating these reassuring statements often. Your consistency is important to can help your child more effectively handle a stressful situation.

Ex Output:

D