Suad is a 45-year-old female. She visited the clinic suffering from muscle weakening and drooping of her eyelids. Upon examination, she was diagnosed with myasthenia gravis. Which of the following is correct about her disease?a.Can be treated by acetylcholinesterase inhibitorsb.Caused by antibodies against acetylcholinesterasec.More common in malesd.The muscle weakness improves as the muscle is used.