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: Pathology
[{'content': 'Petrified man is seen in: \nSelect and explain. \nA. Generalized myositis ossificans, B. Ehlers Danlos syndrome, C. Osteogenesis imperfecta, D. Cherubism', 'role': 'user'}, {'content': "Answer: A \nExplanation: Claw hand: Seen in\n\nScleroderma\xa0\nLeprosy\nMucopolysaccharidosis or Hurler's syndrome or Gorgolism\n\nMask like appearance of face:\n\nScleroderma\xa0\nBell's palsy\nGrotesque or simian appearance - Pagets disease of bone.\n\nAngle face: Cherubism\n\nPetriﬁed man: Generalized myositis ossiﬁcans (stiﬀness of organs)\nRubber man: Ehlers-Danlos syndrome.", 'role': 'assistant'}]