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". 

[Q]: A large group of people are seen standing around a square with people playing volleyball. the people <sep> (A) continue playing along with one another and dance around the area. (B) volley the ball all around one another while scores are being made above the players. (C) continue playing and kicking the ball around a bit while others watch on the sidelines. (D) continuously hit the ball around the sandy field as the camera pans around them playing.
[A]: D


[Q]: [header] How to exercise to prevent blood clots [title] Get up and move around. [step] Whether you're traveling by train, plane, or automobile, long-distance travel involves a lot of sitting. When you sit, you decrease circulation in your legs-especially if you sit with your legs crossed or with one foot under you. <sep> (A) If you are on a train or coach, the seat underneath you always feels flat, as if you are sitting. While there are good ways to stretch out your legs, there is not a lot a group of people can do. (B) This will help promote blood circulation to your feet. It will also keep you from rubbing your legs in an annoying manner-you can't promote blood flow when you're sitting on one leg. (C) [substeps] You can exercise while you drive or driving, although getting up and down on the exercise train can significantly improve circulation. You can also listen to music while you exercise, which will also help to prevent blood clots. (D) [substeps] If you're on a plane, try to get an aisle seat so you can get up and move around more easily. Ideally, you want to get up and stretch your legs or walk up and down the aisle once every hour or so.
[A]: D


[Q]: [header] How to seam carpet [title] Position the carpet well. [step] You should plan the seam so that it falls out in an area that gets very little foot traffic. For instance, placing it an area that will be underneath furniture is better than placing it in the center of your room. <sep> (A) [title] Pick up a piece of fabric to put on the seam. [step] The amount of fabric to use is up to your preference. (B) [substeps] Hiding the seam also makes it less noticeable. Even a good seam may still be seen from time to time, so hiding it will make your room look more professional and neat. (C) [substeps] Lay out a medium-sized section of your carpet going 45 °. For instance, if you put it on a dining table, it should be under a dining chair. (D) [substeps] For instance, if your bedrooms are near the kitchen counter, you should place each staple in a corner of each corner. [title] Measure the area where you plan to either put a staple or seam.
[A]:
B