Trying to understand here - about the popular choice D
The statement says 'Similar deposits are also found in the brains of elderly patients who do not suffer from Alzheimerâ€™s disease'.
D states 'Autopsies have shown that some people lack the chemical necessary for protein deposits to cause brain lesions'.
How does D explain those who have deposits but no Alzheimers.
Look at A 'The lesions found in the brains of non-Alzheimerâ€™s disease patients are far less extensive than those found in the brains of Alzheimerâ€™s disease patients'.
Frankly my brain is not working well tonight and I can be wrong. I am eager to understand the explanation given in the OA. OA Pls.