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 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.
D

[header] How to recognize chickenpox [title] Watch for symptoms on the skin. [step] Approximately one or two days after developing a runny nose and sneezing, you may see red spots on your skin. These dots often start on the chest, face, and back, are often itchy, and can quickly spread to the rest of the body. <sep> (A) [substeps] When this occurs, it may also be due to a new virus. If you experience any major allergic reactions to chickenpox, such as hives or rashes, contact the doctor. (B) If you suspect that you may have chickenpox, you can easily detect these signs and get medical care. [substeps] These red itchy spots may be small, crisp, or feel tight when you press them onto your skin. (C) [substeps] If you are experiencing a runny nose, you may also develop a flu or fever the following day after taking chickenpox. Syphilis, the " natural flu, " often shows up early in the infection, and even greater in children. (D) [substeps] These red spots will turn into red bumps and then small blisters (vesicles). These spots contain the virus and are highly contagious.
D

[header] How to produce saliva [title] Chew gum. [step] One of the quickest and easiest ways to produce more saliva is to pop a stick of gum in your mouth and chew it. The chewing action tells your body that you are eating and that you need saliva to process your food. <sep> (A) For example, if you eat a potato or a peanut, you would suck on your gum slowly while chewing. Having the food on your tongue stimulates saliva production. (B) It is part of forming saliva and is easier to find throughout the day. [substeps] Chewing gum is also known as " saliva dyeing " in the united states. (C) [substeps] Do not chew gum when you are preparing a meal or training your dog. You could cause serious harm to your dog's health. (D) [substeps] It's a good idea to chew sugar-free gum if you have a problem producing saliva. The health of your teeth is already at risk from not having enough saliva, so introducing a bunch of sugar into your mouth potentially adds to the problem.

D