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: Physiology
[{'content': 'The motivational — affect component of pain is carried by \nSelect and explain. \nA. Paleospinothalamic tract, B. Neospinothalamic tract, C. SpinoreticuLar tract, D. Dorsal spinocerebellar tract', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]