In relation to the digestive system, what does a sigmoidscopy specifically target?

A sigmoidoscopy is a medical procedure that specifically targets the sigmoid colon, which is the S-shaped portion of the large intestine located just before the rectum. This procedure involves the use of a sigmoidoscope, an instrument that allows clinicians to visually examine the lining of the sigmoid colon for abnormalities such as polyps, inflammation, or signs of cancer.

The sigmoid colon is a critical area of the digestive system because it is involved in the final stages of digestion and waste elimination. By focusing on this specific section, a sigmoidoscopy is valuable for diagnosing conditions that may not be detected with examinations of the rectum, small intestine, or stomach, as these are separate anatomical areas of the digestive system.

In conclusion, a sigmoidoscopy directly targets the sigmoid colon, making answer C the appropriate choice.