28. your 78-year-old grandmother is having difficulty with memories of her grandchildren, whom she dearly loves. she has difficulty with simple tasks that she has performed hundreds of times, such as remembering the route to the grocery store. she is also quite a bit different in her personality than she used to be being more reactive and prone to anger. there are several types of dementia; what type is your grandmother most likely experiencing? a.alzheimer's disease b.lou gehrig's disease c.huntington's disease d.a negative medical interaction effect