What age-related changes commonly contribute to reduced mobility and pain in older dogs, and what is a common first step in management?

What age-related changes commonly contribute to reduced mobility and pain in older dogs, and what is a common first step in management?

• A. Increased muscle strength and enthusiasm; begin intensive high-impact conditioning.
• B. Kidney failure and liver disease; start antibiotics.
• C. No changes; continue the current routine.
• D. Degenerative joint disease and muscle loss; have a veterinarian assess and start with low-impact exercise and pain management.

Answer: (D)