This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diagnosis in Obstetrics, Subject name: Gynaecology & Obstetrics
[{'content': 'Variable deceleration indicates: \nSelect and explain. \nA. Head compression, B. Cord compression, C. Fetal hypoxaemia, D. Maternal sedation', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans: B (Cord compression) Ref: DC Dutta's Textbook of obstetrics, 7th edn, PgExplanation:Variable deceleration occurs in Cord compression.Late deceleration occurs in Fetal hypoxemia.Early deceleration occurs in Head compression", 'role': 'assistant'}]