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: Surgery
Acute pseudo-obstruction of the colon known as- 
Select and explain. 
A. Sj ogren' s syndrome, B. Gardner's syndrome, C. Ogilivie's syndrome, D. Peutz-jegher's syndrome
C: Ogilivie's syndrome
Answer: C: Ogilivie's syndrome 
Explanation: None