Degenerative diseases are best described as:

• A. They can sometimes get better.
• B. They get continually worse, causing a greater loss of health and abilities.
• C. They stay the same over time.
• D. They improve with treatment.

Answer: (D)

Degenerative diseases are progressive conditions that lead to a gradual decline in health and abilities over time. The defining feature is worsening function as the disease progresses, not staying the same or improving on its own. Treatments can help manage symptoms or slow the decline, but they don’t usually reverse the underlying deterioration. So the description that matches this pattern—continuous worsening over time—is the best fit.