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: Psychiatry
[{'content': "Anterograde amnesia is seen in : a) Head injuryb) Strokec) Spinal cord injury (Traumatic paraplegia)d) Alzheimer's disease \nSelect and explain. \nA. acd, B. abd, C. abc, D. ab", 'role': 'user'}, {'content': "Answer: B \nExplanation: Causes of Amnesia :\n\nPhysical Causes (Both antegrade and retrograde) : Head trauma, Degenerative brain disorders (e.g. Alzheimer's disease), blockage of cerebral blood vessels (stroke), infectious diseases, chronic alcoholism (korsakoff syndrome).\nPsychogenic (Dissociative) amnesia → Retrograde.", 'role': 'assistant'}]