What do fibromyalgia and amyotrophic lateral sclerosis have in common? A. The cause of both diseases is unknown. B. In both diseases, antibodies destroy acetylcholine receptors. C. Both are X-linked genetic diseases. D. Both can be cured with antibiotics. E. In both diseases, the protein dystrophin is absent.

Summarized question: What is common between fibromyalgia and amyotrophic lateral sclerosis?