This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Medical Illness Complicating Pregnancy, Subject name: Gynaecology & Obstetrics
[{'content': 'At what period does tuberculosis flare up most commonly in a pregnant patient? \nSelect and explain. \nA. First trimester, B. Second trimester, C. Third trimester, D. Puerperium', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Puerperium demands more Kcals (Extra 500 Kcal Vs extra 300 kcal in pregnancy) and more proteins (65 Vs 60 gms in pregnancy). This combined with immuno-suppression, the poor nourishment of Indian women, along with overcrowding in a small home and the heat and humidity of tropical countries makes an ideal situation for tuberculosis to strike and thrive.', 'role': 'assistant'}]