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". 

[EX Q]: The cat groomer grabs a cat nail clipper in her right hand. The cat groomer squeezes the cats paw and proceeds to clip the cats nails. the cat groomer <sep> (A) grabs a bottle of clippers and places the cat's nails on the floor and resumes clipping the nails off her paw. (B) then holds the cat close and adjust the camera. (C) performs dog tricks and jumps up on her lap to finish clipping the nails. (D) throws her left paw up then clips her nails.
[EX A]: B

[EX Q]: [header] How to perform an autopsy on a human being [title] Understand what an autopsy is. [step] An autopsy is a detailed examination (and dissection) of a human body after death. It is used to determine the likely time and cause of death, as well as to evaluate the presence of disease and/or injuries. <sep> (A) An autopsy is often performed during the day after a death, or at night. Depending on your body type, an autopsy can last longer or shorter if done with the right equipment. (B) The autopsy is often conducted as a procedure administered in an office, rather than a surgical procedure, but it is treated in multiple ways. [substeps] For a crime scene autopsy, the job is to put the human body's dna on a piece of paper and then render it to a laboratory for analysis. (C) [substeps] An autopsy is conducted by a pathologist, which is a doctor with specialty level training in how to do the procedure and how to effectively analyze the tissues and body fluids. If the person's death is being investigated forensically, an autopsy may be legally mandated. (D) A typical autopsy takes place approximately 50 minutes after the death of the patient. The procedure consists of the following components : [substeps] Removing the deceased's organs from the body.
[EX A]: C

[EX Q]: Several people carry intertubes into the river, climbing on them. They ride the intertubes down the waves of the river and over small waterfalls. they <sep> (A) ride under a bridge, then float in the water. (B) ride for several more days through rocky terrain and small waterfalls and views of the water. (C) use the intertubes as anchors as they ride to the bottom, and continue their lives. (D) continue riding around the river together.
[EX A]:
A