Which of the following statements about congress and the executive branch is most accurate? a. the constitution explicitly prohibits congress from providing specific guidelines to executive agencies for implementing laws. b. congress has never given executive agencies broad mandates and has always drafted legislation that offers very specific guidelines for implementation by the executive. c. starting around the time of the new deal, congress has tended to give executive agencies broad mandates and to draft legislation that offers few clear guidelines for implementation by the executive. d. starting around the time of the new deal, congress has tended to draft legislation that offers very specific guidelines for implementation by the executive.

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a study of twenty 4th grade classrooms in which researchers ask the schools to systematically vary the time of day reading is taught, and collect weekly assessments of reading comprehension for each child over a three-month period.the collection of data, by a playground designer hired by the superintendent of schools, about the physical dimensions of school playgrounds, presence of fencing, and the kinds of equipment currently provided.a feasibility study for implementing a year-round school program, focusing on economic issues such a facilities utilization and transportation costs.an analysis of aggregate data comparing statewide high school graduation rates provided by the state department of public instruction, using county tax information.