Answer:
C. Range
Step-by-step explanation:
Autism Spectrum can be defined as a range of disorders that affect the mental and neurological state of a person.
Autism has been found to be genetic and presently there is not cure. The condition can only be managed effectively.
Types of Autism Spectrum are:
a. Rett's disorder
b. Asperger's syndrome disorder
c. Autistic disorder
d. Pervasive Developmental Disorder
e. Childhood Disintegrative Disorder