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: Forensic Medicine
Presence of gas shadow in the hea and great vessels suggestive of intrauterine death. This is called: KCET12 
Select and explain. 
A. Chadwick's sign, B. Osiander's sign, C. Robe's sign, D. Spalding sign
C: Robe's sign
Answer: C: Robe's sign 
Explanation: Ans. Robe's sign