With age, muscles can become weaker. this is due to a. connections between nerves, which cause more pain and therefore less use b. damage from everyday use and injuries that accumulate over time c. disconnections between motor nerves and muscle fibers d. difficulties that occur during muscle growth and repair

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.

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