This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pregnancy in Rh-negative Women, Subject name: Gynaecology & Obstetrics
Dose of anti D immunoglobin is - 
Select and explain. 
A. 300 mgm, B. 200mgm, C. 30mgm, D. 3mgm
A: 300 mgm
Answer: A: 300 mgm 
Explanation: Ans. is 'a' i.e., 300 mgm o Has been explained in previous sessions