Answer:
The correct answer is D participation in the study will contribute to a better understanding of factors that may contribute to dementia.
Step-by-step explanation:
Alzheimer"s disease is one the of principle neurodegenerative disorder caused by the mutation of tau protein and also occurs due to the accumulation of mis folded proteins or prions proteins.
The one of the most common form of dementia is alzheimer"s disease which severely affect the brain basically the thinking power of brain.
As cynthia"s family has a history of early onset Alzheimer"s disease which has affected some of her family members.That"s why cynthia wants to participate in this study to point out the factors which are responsible for the occurrence of this disease in her family.