Answer:
The correct answer is C. disconnections between motor nerves and muscle fibers.
Explanation:
Weakness refers to the loss of muscle strength. That is, the affected person cannot move a muscle normally despite trying with all his might. However, the term is often used incorrectly. Many people with normal muscle strength say they feel weak when fatigue is the problem or when their mobility is limited due to joint pain or stiffness. Muscle weakness may be a symptom of a neurological dysfunction.
