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: Medicine
Localised regional cerebral atrophy is seen in - 
Select and explain. 
A. Alzheimer's disease, B. Frontotemporal dementia, C. C.J. disease, D. Friedreich's ataxin
B: Frontotemporal dementia
Answer: B: Frontotemporal dementia 
Explanation: None