Which of the following statements is most accurate in regards to identification methods used for LD in various districts/states. a. each state adopts their own LD criteria and the method used for identification are implemented consistently across all districts b. there is a lot of variability among states qualification criteria; some are using RTI and some are using discrepancy model c. the federal definition is descriptive enough that states just use the federal definition as their state law d. school district LD criteria and private practitioner LD identification criteria are the same