This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Multiple Pregnancy, Subject name: Gynaecology & Obstetrics
[{'content': 'What is the most common type of twin pregnancy? \nSelect and explain. \nA. Dichorionic diamniotic, B. Monochorionic diamniotic, C. Monochorionic monoamniotic, D. Dichorionic monoamniotic', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A. Dichorionic diamniotica. Dizygotic twins are more common than monozygotic twins. Thus, dichorionic diamniotic is the most common variety.b. The most common variety of monozygotic twins is monochorionic diamniotic.', 'role': 'assistant'}]