The central authority that connected most of Europe during the Middle Ages was A. the legacy of Rome.
B. the monarchy established by Charlemagne.
C. feudal landowners.
D. the Catholic Church.

Opposition to the nra came to a head in 1935, when the conservative supreme court declared the agency unconstitutional, claiming the nra gave the executive branch regulatory powers that belonged exclusively to congress. this decision began a series of court decisions that overturned key elements of the new deal.