Question

this is a chronic autoimmune disorder in which antibodies destroy the communication between nerves and muscle, resulting in weakness of the skeletal muscles. it affects the voluntary muscles of the body, especially those that control the eyes, mouth, throat and limbs.
a osteoporosis
b myasthenia gravis
c gout
d fibromyalgia

Explanation:

Myasthenia gravis is an autoimmune disorder where antibodies disrupt nerve - muscle communication, causing skeletal muscle weakness, especially in voluntary muscles like those controlling eyes, mouth, throat, and limbs. Osteoporosis is a bone - density disorder. Gout is a metabolic disorder due to uric acid buildup. Fibromyalgia is a chronic pain disorder.

Answer:

B. myasthenia gravis