Alzheimer's disease is the most common cause of dementia.
The word dementia describes a set of symptoms that can include memory loss and difficulties with thinking, problem-solving and/or language. These symptoms occur when the brain is damaged by certain diseases, including Alzheimer's disease.
I would have to say either B or C.. I am leaning more towards C though.. hope this helps a little
Wearing gloves, hair nets, and making sure there is no cross contamination
