This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anaemia in Pregnancy, Subject name: Gynaecology & Obstetrics
In which condition of the following you see the sine wave on a Cardiotocograph 
Select and explain. 
A. Placental Insufficiency, B. Head Compression, C. Cord Compression, D. Fetal Anemia
D: Fetal Anemia
Answer: D: Fetal Anemia 
Explanation: Sinusoidal pattern is seen in following conditions: 1. severe fetal anemia 2. fetal intracranial haemorrhage 3. severe fetal asphyxia