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".

[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.
B