This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Physiology
Caisson's disease is 
Select and explain. 
A. Gas embolism, B. Fat embolism, C. Amniotic fluid embolism, D. Tumor embolism
A: Gas embolism
Answer: A: Gas embolism 
Explanation: Decompression sickness (DCS; also known as divers' disease, the bends, aerobullosis, or caisson disease) describes a condition arising from dissolved gases coming out of solution into bubbles inside the body on depressurisation Ref: guyton and hall textbook of medical physiology 12 edition page number:375,376,377