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". 
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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 blacken steak [title] Choose new york strip steaks or rib eye steaks. [step] You want to use these lean cuts because they will cook evenly and blacken well. Choose steaks that are about 3/4-inch (1.9 cm) thick. <sep> (A) [title] Defrost the steaks completely in the refrigerator overnight. [step] Do not defrost them in the microwave, or you will ruin the process of blackening them. (B) Look at the internal temperature of the sirloin steaks and see if they are ready to be grilled. Use a grill thermometer to check for the internal temperature of the steak when it is on the grill. (C) If you don't want a table full, for instance, skip the steaks. [title] Sear the steak at 180 degrees. (D) [substeps] Before you cook the steaks, check each raw side. For thicker cuts, use 1/4 to 1/2 cup (1.7 to 1.75 g) of brisket for each steak.

Answer: A


Question: People are seen walking around a track and sitting down. One stands before a track and looks off into the distance. he <sep> (A) throws a ball up into a pit. (B) lifts up his arm and walks off the track. (C) yells to an audience and raises his arms up. (D) runs down the track and into a sand pit.

Answer:
D