This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous system, Subject name: Physiology
[{'content': 'Functions of limbic system \nSelect and explain. \nA. Emotion, B. Memory, C. Higher function, D. Planned motor activity', 'role': 'user'}, {'content': "Answer: A \nExplanation: Emotional behaviour is one of the most impoant functions of the limbic system. Emotions refer to an aroused state involving intense feeling, autonomic activation and related behaviour, which accompany many of our conscious experiences. Emotions have two major components: mental and physical. - MENTAL OR SENSORY COMPONENT: mental or sensory component of emotions comprises cognition, affect and conation. PHYSICAL OR EXPRESSIVE OR PERIPHERAL COMPONENT: it is the motor side of emotional behaviour. It consists of two subcomponents - the somatic and autonomic. Ref: Ganong's Review of Medical Physiology 26th edition pg no:621", 'role': 'assistant'}]