Question ID:PT64 S3 Q17 Passage:Science writer: The deterioration of cognitive faculties associated with Alzheimer's disease is evidently caused by the activities of microglia‚ the brain's own immune cells. For one thing, this deterioration can be slowed by some anti-inflammatory drugs, such as acetylsalicylic acid. Furthermore, patients with Alzheimer's are unable to eliminate the protein BA from the brain, where it accumulates and forms deposits. The microglia attack these protein deposits by releasing poisons that destroy surrounding healthy brain cells, thereby impairing the brain's cognitive functions. Stem:Which one of the following, if true, most helps to support the science writer's argument? Correct Answer Choice:BChoice A:The inability of Alzheimer's patients to eliminate the protein BA from the brain is due to a deficiency in the brain's immune system. Choice B:Acetylsalicylic acid reduces the production of immune cells in the brain. Choice C:The activity of microglia results in a decrease in the buildup of protein deposits in the brain. Choice D:The protein BA directly interferes with the cognitive functions of the brain. Choice E:Immune reactions by microglia occur in certain diseases of the brain other than Alzheimer's.