Answer:
a social media link to an article with citations written by a neurobiologist
Explanation:
The link is written by a neurobiologist and those people are train to know the problems in someones nervous system. Dementia and chicken pox has nothing to do with Alzheimers. The company developing a treatment for Alzheirmers isnt about Alzheirmers but just about their treatment. The social media page with a person with Alzheirmers isnt professional and they may not talk about their Alzheirmers either.
The answer is c) because that's where they do that stuff.
