How are the amyloid plaques formed in the brain in patients who have Alzheimer's disease?
A. Beta-amyloid causes the myelin in the brain to harden and deteriorate, creating plaques in the brain.
B. The protein tau creates twisted bundles of threads that occur when neurons collapse.
C. Neurons in the brain combine due to an increase in dopamine in the brain and create blockages between other neurons.
D. Patients experience inflammation that causes the beta-amyloid to accumulate and join with clumps of dead neurons and glial cells.
Answer: D
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