All of the following cause subcoical dementia, Except:
Answer is A (Alzheimer's disease):` Dementia from Alzheimer's disease (Dementia of Alzheimer's Type) is the classical proto-type of coical dementias. Alzheimer's dementia is the most common coical dementia.
Alzheimer's disease
Porkinsonism
HIV encephalopathy
Progressive Supranuclear palsy