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 diagnose and treat anal gland disease in cats [title] Notice the cat favoring their behind. [step] If there are problems with the anal glands, the cat will pay attention to it in a way that you will notice. They may lick it or bite at it. <sep> (A) This is a sign of a stressed cat. If you know that the cat is stressed and doesn't want to eat, keep an eye on the cat's back to see if it is depressed. (B) However, the cat may not lick at the glands. This behavior is a sign of poor health. (C) They may also scoot their behind across the floor. [substeps] Your cat does this to try and alleviate the pain and itchiness. (D) The cat also may cry out, disgust, or gain weight due to the condition. Take your cat to see your vet and get an answer right away.
Example Output: C

Example Input: A little boy is climbing up the stairs of a play gym, he stops once and points at a red tube opening but passes it. He gets to the red tube slide at the top and points to it and then slides down. once <sep> (A) he gets to the bottom, he waits, lifts his legs and slides but doesn't slide. (B) on the ground he walks around for a bit then turns around and points up. (C) on, he slides across it and has a great time sliding down. (D) he reaches the bottom, he comes up and grabs the gear that is underneath him and begins to slide back down.
Example Output: B

Example Input: [header] How to treat an overactive bladder naturally [title] Control your fluid intake throughout the day. [step] To avoid overwhelming your bladder, you should try to control how often you drink fluids throughout the day. Aim for reducing your fluid intake by 25 percent so your bladder is not too full. <sep> (A) [substeps] One side effect of using an active bladder involves pressure in your bladder. This pressure can be carried out via straining, pushing out urine from your bladder. (B) Your doctor may also suggest a specific fluid reduction for you based on your condition. [substeps] For example, you may try to drink a certain amount of water every hour or every other hour so you spread out your fluid intake. (C) [substeps] Drink 800 to 227 milliliters (1 cup) of fluids daily. Drink this in a warm, soothing bath so that you do not overexert yourself. (D) [substeps] Limit your fluid intake to 500 mg a day (0.3 mg given orally). If you are at work or at school, try eliminating excessive or strenuous physical activity from your schedule.
Example Output:
B