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: Dental
Babloo a 4 year male presents with history of seizures. On examination there is hypopigmedted patches on face & mental retardation. Most probable diagnosis is – 
Select and explain. 
A. Neurofibromatosis, B. Tuberous sclerosis, C. Sturge weber syndrome, D. Incontinenta pigmenti
B: Tuberous sclerosis
Answer: B: Tuberous sclerosis 
Explanation: Seizures, mental retardation and hypopigmented patches on face (Ash - leaf spot) suggest the diagnosis of tuberous sclerosis.