Which option lists four common medical conditions that result in physical disability?

• A. Stroke, Alzheimer's disease, Multiple Sclerosis, and COPD
• B. Traumatic brain injury, epilepsy, diabetes, and cancer
• C. Migraine, arthritis, scoliosis, and gout
• D. Stroke, Cerebral Palsy, Multiple Sclerosis, and Parkinson's disease

Answer: (D)

This question focuses on conditions that commonly cause physical disability through motor impairment and mobility limits. The best answer lists four conditions known for lasting motor dysfunction: stroke often leaves weakness or paralysis on one side, reducing mobility and daily functioning; cerebral palsy is a lifelong motor disorder with spasticity and coordination problems that impede movement; multiple sclerosis disrupts nerve signaling, leading to weakness, gait problems, tremor, and spasticity; and Parkinson's disease brings bradykinesia, rigidity, tremor, and postural instability that progressively affect movement. Together, these represent four well-established sources of physical disability across different ages and scenarios.

The other options mix conditions where physical disability is not their defining or most consistent outcome: cognitive decline in Alzheimer's, breathlessness and endurance issues in COPD, seizure disorders in epilepsy with variable motor impact, and systemic or episodic conditions like diabetes, cancer, migraine, gout, or scoliosis that don’t uniformly produce lasting motor disability in the same way.