This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
[{'content': 'The Most common presentation of multiple sclerosis \nSelect and explain. \nA. Sensory loss, B. Vertigo, C. Pain, D. Epilepsy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (A) Sensory loss # Initial symptoms of MSSYMPTOM%SYMPTOM OF CASES%* Sensory loss37* Lhermitte3* Optic neuritis36* Pain3* Weakness35* Dementia2* Paresthesias24* Visual loss2* Diplopia15* Facial palsy1* Ataxia11* Impotence1* Vertigo6* Myokymia1* Paroxysmal attacks4* Epilepsy1* Bladder4* Falling1', 'role': 'assistant'}]