1. Which of the following is true about mild mental retardation? A. It is diagnosed in persons with IQ less than 70 but more than 55. B. Persons with this condition can only perform simple elementary tasks. C. Most persons with this condition live in supported supervised care settings. D. Persons with mild retardation constitute about 34% of those classified as mentally retarded. E. Persons with this condition never learn to read or write.