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: Unknown
[{'content': 'The lymphatics of vulva: \nSelect and explain. \nA. Do not freely communicate with each other, B. Do not cross the labiocrual fold, C. Transverse the labia from medial to lateral margin, D. Drain directly into the deep femoral glands', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Lymphatic Drainage of Reproductive Tract:\nUterine Corpus –\n1. Fundus-Para-aortic lymph nodes\n2. Cornu-Superficial inguinal\n3. Body-External Iliac L N\nCervix \xa0\xa0 1. Paramatrial\n2. Internal iliac group\n3. Obtruator group\n4. External iliac group\n5. Sacral\n\nAll these drain into common iliac and superior lumbar group\n\nFallopian tube and ovary-Superior lumbar group\nVagina - Upper 2/3-Like cervix\n\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0 \xa0 Lower 1/3-Inguinal and external iliac nodes\nVulva-\xa0\xa0\xa0 Superficial inguinal\n\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0 \xa0Deep inguinal\n\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0 \xa0External iliac', 'role': 'assistant'}]