Cedric is a fourth grader who seems to be having difficulty keeping up with reading tasks. His parents are interested in looking into the possibility of special education services. They have made an appointment with Cedric's teacher and the special education teacher who works with fourth-grade students. The likely first step the school will take is ?單選:A. having the parents meet with the principal to discourage them from looking into special education servicesB. prereferral screening and in-class observationC. ordering books-on-tape for all of Cedric's fourth grade textsD. formal testing and evaluation for learning disabilities