This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuroanatomy 3, Subject name: Anatomy
[{'content': "The sensation produced by a wisp of cotton on one's fingeip is mediated by the: \nSelect and explain. \nA. Anterior coicospinal tract, B. Anterior spinocerebellar tract, C. Anterior spinothalamic tract., D. Cuneocerebellar tract.", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Anterior spinothalamic tract is concerned with light touch- sensation produced by stroking skin with a wisp of cotton.', 'role': 'assistant'}]