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 increase in threshold of a receptor when a series of stimuli of subthreshold intensity are applied in succession is called as__________ \nSelect and explain. \nA. Adaptation, B. Initiation, C. Accommodation, D. Resistance', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]