This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Special Senses, Subject name: Physiology
[{'content': 'Which taste sensation is the most sensitive (i.e., has the lowest stimulation threshold)? \nSelect and explain. \nA. Acid, B. Bitter, C. Salty, D. Sour', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The bitter taste sense is much more sensitive than the other sensations because it provides an impoant protective function against many dangerous toxins in food.', 'role': 'assistant'}]