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
Variable decelerations on electronic fetal monitoring in a woman who is in labour indicates : 
Select and explain. 
A. Congenital hea disease, B. Compression of head, C. Administration of sympathomimetic drugs to the mother, D. Umbilical cord compression
D: Umbilical cord compression
Answer: D: Umbilical cord compression 
Explanation: Umbilical cord compression