How has the relationship between the federal bureaucracy and congress changed over time? a. since world war ii, congress has increasingly limited the role of federal agencies in economic and social policy. b. in the past, federal agencies set their own rules and determined their own processes, without congressional oversight. c. over the past century, congress has sought to reduce the number of federal agencies in order to exert more influence over the bureaucracy. d. through the rise of special interests, beginning in the 1980s, the federal bureaucracy has taken a more direct role in congressional policy-making. e. since their inception, executive agencies have gained greater independence from congress and now determine many of their own rules and regulations.