This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Breast), Subject name: Surgery
[{'content': 'In mondors disease there swelling and hardening of- \nSelect and explain. \nA. Lymphatics, B. Veins, C. Arteries, D. Nerves', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Veins", 'role': 'assistant'}]