An untreatable neurological disorder involving severe, progressive memory loss is called ________.

A) Alzheimer's disease
B) retrograde amnesia
C) Korsakoff's syndrome
D) Milner's syndrome

Alzheimer's Disease

A progressive neurodegenerative disorder that causes memory loss, cognitive decline, and ultimately, loss of ability to carry out simple tasks.

Neurological Disorder

Any condition that is caused by a dysfunction in part of the brain or nervous system, leading to physical and/or psychological symptoms.