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: Gynaecology & Obstetrics
Twin peak sign seen in : 
Select and explain. 
A. Monochorionic diamniotic, B. Dichorionic monoamniotic, C. Conjoined twins, D. Diamniotic dichorionic
D: Diamniotic dichorionic
Answer: D: Diamniotic dichorionic 
Explanation: Ans. is d i.e. Diamniotic dichorionic