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
Kanner's syndrome is also known as 
Select and explain. 
A. Autism, B. Osteogenesis imperfecta, C. Trigeminal neuralgia, D. Diabetes mellitus type I
A: Autism
Answer: A: Autism 
Explanation: None