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': '28 year old female presented with syphilitic chancre. She was put on Inj. Benzathine penicillin G 2.4 million units i.m single dose regimen. After initial treatment, she was screened at 6 month interval. She was found to be still positive. Which of the following treatment regimen would you recommend \nSelect and explain. \nA. Inj. Benzathine penicillin G, 2.4 mIU i.m single dose, B. Inj. Benzathine penicillin G, 2.4 mIU i.m twice daily for 1 week, C. Inj. Benzathine penicillin G, 2.4 mIU i.m twice weekly for 3 weeks, D. Inj. Benzathine penicillin G, 2.4 mIU i.m weekly for 3 weeks', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Retreatment Recommendations are.\nBenzathine penicillin G, 2.4 million units i.m weekly for 3 weeks.', 'role': 'assistant'}]