How Is Alzheimer's Disease Diagnosed in Humans

Multiple Choice

How is Alzheimer's disease diagnosed in humans?

A) Through exclusion-ruling out all other causes of dementia-because the characteristic beta-amyloid plaques can only be assessed in a postmortem examination of brain tissue.
B) Through a PET scan to see how the brain and its tissues are working because Alzheimer's diseased brains have a characteristic type of functioning.
C) Through an MRI or CT scan to observe the structure of the brain and identify whether the characteristic plaques and tangles are present.
D) Through a series of neurological tests that indicate symptoms of Alzheimer's disease exclusively (not present in other forms of dementia) .