This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Skeletal Muscle: Contraction and Excitation, Subject name: Physiology
[{'content': 'Sorensess and pain in muscels after vigrous exercise is due to - \nSelect and explain. \nA. Hyperkalemia, B. Lactic acidosis, C. Hyperthermia, D. Hyponatremia', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Lactic acidosis o Immediate-onset Soreness is characterized by pain during and immediately after exercise.o This type of soreness is thought to be caused by stimulation of pain receptors by metabolic by-products of cellular respiration, especially H+ associated with incereased lactic acid levels.", 'role': 'assistant'}]