Your Uncle Returns Home After Visiting a Sleep Clinic

Your uncle returns home after visiting a sleep clinic.He says the sleep specialists diagnosed him as suffering from narcolepsy.Which of the following sets of symptoms probably led to his decision to seek an evaluation at the sleep clinic?

A) loud snoring and violent leg movements during sleep
B) early morning waking and an inability to get back to sleep
C) irresistible sleep attacks and sudden loss of muscle tone for brief periods of time
D) inability to breathe and sleep at the same time and difficulty getting to sleep