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: Medicine
A man was diagnosed to have myositis ossificans progressive at the age of 20 years. He died five years later. What is the most probable cause of his death - 
Select and explain. 
A. Starvation and chest infection, B. Myocarditis, C. Hypercalcemia, D. Hyperphosphatemia
A: Starvation and chest infection
Answer: A: Starvation and chest infection 
Explanation: The most common causes of death in patients with fibrodysplasia ossificans progressiva were cardiorespiratory failure from thoracic insufficiency syndrome (54%; median age, forty-two years) and pneumonia (15%; median age, fortyyears).