The Proportion of Americans Identifying Themselves as Democrats Has Been

The proportion of Americans identifying themselves as Democrats has been consistently ________ than the proportion identifying themselves as Republicans since ________.

A) higher; reliable data were first collected in the 1950s
B) higher; the Watergate scandal involving President Nixon in 1974
C) higher; the failed effort to remove President Clinton from office in 1999
D) lower; reliable data were first collected in the 1950s
E) lower; the "stagflation" that occurred during the Carter administration