What are the components of effective progress monitoring methods? a) They must be consistent across forms with little or no change between them, and representative of the performance desired at the end of the year. b) They must be unique for each assessment, varying in difficulty, and representative of the performance desired at the end of the year. c) They must be available in alternate forms, increasing in difficulty, and representative of the performance desired at the point of the measurement. d) They must be available in alternate forms, comparable in difficulty and conceptualization, and focus only on short-term goals. e) They must be available in alternate forms, comparable in difficulty and conceptualization, and representative of the performance desired at the end of the year