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
Singers Alkali denaturation test is done with: 
Select and explain. 
A. Maternal Hb, B. Fetal Hb, C. Amniotic fluid, D. Menstrual fluid
B: Fetal Hb
Answer: B: Fetal Hb 
Explanation: None