This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General obstetrics, Subject name: Gynaecology & Obstetrics
[{'content': 'A 26-year-old primigravida with a twin gestation at 30 weeks presents for a USG,The sonogram indicates that the fetuses are both male and the placenta appears to be diamniotic and monochorionic.Twin B is noted to have oligohydramnios arid to be much smaller than twin A. In this cirnical scenario ,all of following are concerns for twin A except \nSelect and explain. \nA. CHF, B. Anemia, C. Hydramnios, D. Widespread thromboses', 'role': 'user'}, {'content': 'Answer: B \nExplanation: <p> In twin-twin transfusion syndrome,hemodynamic imbalance occurs. As a result the receptor twin becomes larger with hydramnios,polycythemic,hypeensive,hypervolemic,at the expense of the donor twin. Reference:DC Dutta&;s textbook of obstetrics,8th edition,page no:240 <\\p>', 'role': 'assistant'}]