When Larry Was a Teenager, He Began Experiencing Periods When

Multiple Choice

When Larry was a teenager, he began experiencing periods when he had a lot of trouble staying awake during the day, even though he was getting enough sleep each night. He also would experience sudden "attacks" where he would collapse to the floor in the middle of an activity. Larry suffers from:

A) sleep apnea.
B) insomnia.
C) narcolepsy.
D) REM behaviour disorder.