The answer is B. Incentive is the term being described
Occasional forgetting of objects, dates and situations is normal for people and occurs for various reasons such as a situation of stress or extreme tiredness, this situation is temporary, so it is not repeated in time linearly.
On the other hand we see that Alzheimer's disease (AD), also called senile dementia of Alzheimer's type (DSTA) or simply Alzheimer's, is a neurodegenerative disease that manifests as cognitive impairment and behavioral disorders. Characterized in its typical form by a loss of immediate memory and other mental abilities (such as higher cognitive abilities), as nerve cells (neurons) die and different brain areas atrophy, this is an irreversible process .
