Jason's Mother Claims That He Can Multiply Large Numbers in His

Jason's mother claims that he can multiply large numbers in his head. She says he can figure out, for example, what day of the week it was on February 2, 1846. However, Jason was tested for intelligence and his IQ scored was below 70. What is a reasonable response to Jason's mother?

A) "Your son sounds as if he is an autistic child with splinter skills."
B) "What you say he can do is not possible; you must be mistaken."
C) "Your son is demonstrating two common symptoms of autism-echolalia and stimulus over-selectivity."
D) "The testing must have been mistaken; your son is probably an emotionally healthy genius."