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
Willis Ekbom disease is: 
Select and explain. 
A. Delusional parasitosis, B. Restless leg syndrome, C. Somnambulism, D. Autism in orphans
B: Restless leg syndrome
Answer: B: Restless leg syndrome 
Explanation: Restless leg syndrome is also called as "Willis Ekbom" disease.
Ekbom syndrome is Delusional parasitosis.