Which condition is characterized by ribbon-like stools and abdominal distention?

Hirschsprung's disease is characterized by the absence of nerve cells in a portion of the bowel, which leads to a lack of peristalsis in that segment. This condition results in the inability to effectively move stool through the intestines, causing a buildup of stool behind the affected area. As a consequence, the stools can become very thin, resembling a ribbon shape, particularly as they pass through the narrowed portion of the intestine. Additionally, abdominal distention is a common symptom due to the accumulation of stool in the bowel, causing pressure and swelling. Therefore, the combination of ribbon-like stools and abdominal distention is indicative of Hirschsprung's disease, making it the correct answer in this scenario.