33 What does the last sentence of the passage imply?
(A)If Asperger Syndrome is treated as a difference, rather than a disability, it will be cured in the near future.
(B)Because the exact cause of Asperger Syndrome is unknown, it is considered as a disability.
(C)Because people with Asperger Syndrome have difficulties in social interaction, they are significantly different.
(D)As questions about the causes of the disorder remain, Asperger Syndrome should be seen as a difference.