Mr and Mrs

Mr. and Mrs. G are a married couple who are in their late 30s. They are referred by their physician to an outpatient nutritional counseling center that specializes in genetics. Both of them have been tested for several genetic conditions as they are at risk of developing various chronic diseases due to the familial predisposition. Mrs. G is particularly concerned due to the history of cancer and dementia in her family, whereas obesity runs in Mr. G's family.
-A registered dietitian reads the genetic report and finds that Mrs. G has a polymorphism in the methylenetetrahydrofolate reductase gene, which is linked to the increased risk of:

A) Alzheimer's disease
B) diabetes
C) hyperlipidemia
D) cancer
E) obesity