You are running a caregiver support group for those who are caring for a person with impaired cognition related to Alzheimer's disease. You are planning a session on the stages of Alzheimer's disease, its progression and some useful helpful tips for these participating care givers. Which of the following elements should you include in this session?

C According to the Global Deterioration Scale, clients in the third stage of Alzheimer's disease tend to cover up their failing abilities A According to the Global Deterioration Scale, clients in the first stage of Alzheimer's disease tend to cover up their failing abilities D According to the Reisberg Scale, clients in the fourth stage of Alzheimer's disease tend to cover up their failing abilities B According to the Reisberg Scale, clients in the first stage of Alzheimer's disease tend to cover up their failing abilities