Numbness in the limbs, visual disturbances, muscle weakness, and urinary problems can all be symptoms of

Aside from numbness, weakness, restless leg syndrome and fatigue there are numerous symptoms associated with multiple sclerosis – some more common than others. Common symptoms of MS Walking difficulties – weakness, spasticity, loss of balance, sensory deficits and fatigue can all be contributing factors

Explanation:

it's d - life cycles - apex

answer; heredity;