Answer:
Option (a).
Explanation:
Alzheimer’s disease may be defined as a medical condition that gets worse over time with age. Most of the dementia is caused by this disease. This is a type of inherited disease.
The Alzheimer’s disease is a neurological disorder. The individual starts feeling difficulty in remembering the small events. The disease is marked with loss of the motor skills and memory. The behavioral issue, motivation loss and mood swings are common in this disease.
Thus, the correct answer is option (a).