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': 'Lines of Blasehko are related to - \nSelect and explain. \nA. Keratinocytes, B. Blood vessels, C. Nerves, D. Bones', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans-A Keratinocytes o Blaschko's lines correspond to the pathways followed by keratinocytes migrating from the neural crest during embryogenesis.o The lines follow a V-shape over the spine, an S-shape on the abdomen, inverted U-shape from the breast area to the upper arm and perpendicular down the front and back of the lower extremities.", 'role': 'assistant'}]