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
Robert's sign is a feature of 
Select and explain. 
A. Le fort fracture grade II, B. Dead born Infant, C. Live Born Infant, D. Orbital fracture
B: Dead born Infant
Answer: B: Dead born Infant 
Explanation: Robert's sign is appearance of gas shadow in chambers of heart and great vessels. It is seen in dead born infant.