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
Prognosis of Gestational Trophoblastic Disease depends on all, except : 
Select and explain. 
A. Number of living children, B. Blood group, C. Parity, D. Previous HCG titre
A: Number of living children
Answer: A: Number of living children 
Explanation: Ans. is a i.e. Number of living children