This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Gynaecology & Obstetrics
All the following are hereditary causes of anemia during pregnancy except: 
Select and explain. 
A. Thalassemias, B. Sickle cell anemia, C. Megaloblastic anemia, D. Hereditary hemolytic anemia
C: Megaloblastic anemia
Answer: C: Megaloblastic anemia 
Explanation: Causes of anemia during pregnancyAcquiredHereditaryIron deficiency anemiaThalassemiasAnemia caused by acute blood lossSickle cell anemiaAnemia of inflammation or malignancyHereditary hemolytic anemiaMegaloblastic anemiaAcquired hemolytic anemiaAplastic or hypoplastic anemia(Ref: William's Obstetrics; 25th edition)