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
[{'content': 'Complete H. Mole are:a) Triploidb) Diploidc) Increased β-HCGd) 2% cases may convert to carcinomae)  Chance of malignant conversion less than partial mole \nSelect and explain. \nA. abc, B. bcd, C. ac, D. bd', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Differences between complete and partial mole', 'role': 'assistant'}]