Final answer:
Apathy (option c) is typically the early and prominent feature in dementia, which involves a general lack of interest or emotional response, not to be confused with ADHD, which presents a different set of symptoms such as impulsivity and hyperactivity.
Step-by-step explanation:
Apathy is typically an early and prominent feature in dementia. This refers to a lack of interest in activities or a lack of emotional responsiveness. Dementia can also present with symptoms such as disruptive memory loss, confusion about time or place, difficulty with planning and executing tasks, poor judgment and personality changes. Another neurological condition, Parkinson's disease, presents with symptoms like slowed movements, balance and posture problems, which can eventually lead to dementia.
While symptoms such as impulsivity and hyperactivity are characteristic of attention deficit hyperactivity disorder (ADHD), they are not typically early signs of dementia. ADHD is a neurodevelopmental disorder featuring symptoms like inattention, executive functioning difficulties, impulsivity, and hyperactivity. It is important to distinguish between dementia and ADHD, as they are different conditions and have different symptoms and treatment strategies.