An 86-yeаr-оld wоmаn with histоry of hypertension аnd type-2 diabetes mellitus is brought to the clinic by her son, who is concerned that his mother has become more forgetful over the past year. She has difficulty following instructions, and he took away her car keys after she got lost driving in their neighborhood. He has had to take over her finances, and most recently he has noticed a decline in her ability to manage activities of daily living. She has no past psychiatric history. Her Mini-Mental State Examination (MMSE) score is 17/30. Which of the following criteria would support a diagnosis of Alzheimer’s disease?