This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Radiology
"String of beads" appearance on horizontal abdominal view X-ray is suggestive of: 
Select and explain. 
A. Intussusception, B. Sigmoid volvulus, C. Small bowel obstruction, D. Large bowel obstruction
C: Small bowel obstruction
Answer: C: Small bowel obstruction 
Explanation: Ans. Small bowel obstruction