This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
Not true about narcolepsy - 
Select and explain. 
A. Sleep sudden, B. Long duration (>3 hrs) of sleep, C. Cataplexy, D. Presents in IInd decade
B: Long duration (>3 hrs) of sleep
Answer: B: Long duration (>3 hrs) of sleep 
Explanation: Narcolepsy is characterized by bouts of sudden sleep each lasting for 10-30 minutes occurring during the daytime. Age of onset is between 10-20 years.
Accessory symptoms in Narcolepsy are cataplexy, hypnagogic hallucination, sleep paralysis.