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: Pediatrics
Laurence moon biedle syndrome-Associated with? 
Select and explain. 
A. Polydactyly, B. Mental retardation, C. Retinitis pigmentosa, D. All of above
D: All of above
Answer: D: All of above 
Explanation: Ans. is 'd' i.e., All of above Laurence-Moon-Biedl syndrome is characterized by: Obesity Polydactyly Mental retardation Hypogonadotropic hypogonadism Retinitis pigmentosa