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 man is standing in the snow. he <sep> (A) is holding a large shovel. (B) is in an area filled with trees, and he is being held up by another man. (C) grabs a scoop and shovels it out. (D) is holding on to a rope attached to a machine.

A: A
****
Q: [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.

A: D
****
Q: [header] How to change a pool light [title] Shut off all power to the pool lighting. [substeps] This will be done at your electrical box. Some swimming pools have been equipped with their own breaker boxes. <sep> (A) [title] Clear the area of the pool that is near lights. [substeps] Remove any large rocks, fallen trees, or other debris from the pool, especially under the lights you will be installing on them. (B) [title] Check to make sure power is off by trying to turn on the pool lights. [substeps] Not sure about this step...if light is burned out, it will not turn on anyway. (C) [title] Rotate the pool lights right every 20-30 seconds. [step] If your pool goes dark, reset power to the same water circuit that you drained earlier and then turn your pool lights back on. (D) Most has a switch that shuts off only water when the wiring is up. If you are right footed, you will get most of your operation done from here.

A:
B
****