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
When the gas filled cysts are found in subserosa or submucosa of small intestine or colon, it is called - 
Select and explain. 
A. Pneumatosis cystoides intestinalis, B. Crohn's disease, C. Ulcerative colitis, D. Mesenteric cyst
A: Pneumatosis cystoides intestinalis
Answer: A: Pneumatosis cystoides intestinalis 
Explanation: None