Select the correct statement regarding the specific disorder of the muscular or skeletal system:
- AMuscular dystrophy - age-related shortening of muscles.
- BOsteoporosis - decrease in bone mass and higher chance of fractures with advancing age.
- CMyasthenia gravis - Autoimmune disorder which inhibits sliding of myosin filaments.
- DGout - inflammation of joints due to extra deposition of calcium.
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