An individual visits the doctor because they notice that, over time, they have been losing muscle strength. Which explanation will the doctor MOST likely give?

Gradual, ongoing loss of muscle strength is a common sign of muscular dystrophy, a group of diseases that cause muscles to weaken over time. A sprain is an injury to a ligament, not a usual explanation for progressive muscle weakness, and a skeletal disease affects bones rather than primarily weakening muscles. The best choice is C, muscular dystrophy.

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