This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sexual offences and infanticide, Subject name: Forensic Medicine
Rigor mois in fetus at bih can be seen in - 
Select and explain. 
A. Dead born, B. Still born, C. Superfoetation, D. Superfecundation
A: Dead born
Answer: A: Dead born 
Explanation: Ref:Textbook of forensic medicine and toxicology (V.V.Pillay) 17th edition, page no.378 A dead born child is one which has died in utero, and shows any one of the sign like,maceration, putrefication,mummification or rigor mous after it is completely born. Rigor mois- In the early stages after intrauterine death, if the foetus has developed to nearly full term, rigor mois may set in. The delivery of such a foetus may be difficult.