Ryan is 4 years old. he does not like to make eye contact, does not engage in reciprocal games with his parents or other children, and does not express awareness of others' points of view. his deficits, which have been diagnosed as autism spectrum disorder, may be due to ____.​
a. ​visual and auditory sensitivity
b. ​a failure to develop a normal theory of mind
c. ​slow development of language skills
d. ​a lack of auditory filtering