Read the reading below carefully, and then complete It with the best option A, B, C or D given below:
Other disabilities include hearing, visual, or orthopedic impairments; autism; (1) ______ traumatic brain injury. An increasing number of children in the United States are identified as having attention-deficit hyperactivity disorder (ADHD) and (2) ______ special education services. Many schools in the United States provide special education services (3) ______ gifted children, although federal law does not mandate these services. Gifted children demonstrate (4) ______ high abilities in intellectual, creative, academic, leadership, or artistic areas. Estimates of the gifted (5) ______ in the United States range from 3 to 5 percent of all schoolchildren.

Other disabilities include hearing, visual, or orthopedic impairments; autism; (1) ______ traumatic brain injury