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". 

A large group of people are seen playing instruments with one another. the camera <sep> (A) pans around the audience and shows the audience shaking hands. (B) pans around to show many people leading in front and the drummer leading in front. (C) follows a bull that ties up a man on the ground. (D) zooms in on a man playing a violin.
D

[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.
A

[header] How to do stiletto nails [title] Gather your materials. [step] Stiletto nails are easy to achieve, but you do need some special materials and tools. You will need : [substeps] A package of long, square shaped fake nails. <sep> (A) Tacky nail polish remover to remove loose polish from the tips of fake nails. A temporary lash station or a separate eyelash curler. (B) Get the kind that go over your entire nail. You can find these in beauty supply stores. (C) Two pieces of cardboard or rectangular paper a ruler three different colored jewels, thumbtacks, or duct tape some glue nail polish a nail sealer or nail salon. [title] Cut the cardboard or paper to the correct length. (D) Scissors for making very even cuts, or, you can use a craft knife. Nail clippers or the small cylindrical object that can be used as a nail clipper.

B