A Key Part of an Incumbent's Success Is the Incumbent's

A key part of an incumbent's success is the incumbent's home style,which is developed by:

A) spending more time in the district than in Washington
B) using the ability to send free mail to constituents to tout the incumbent's accomplishments
C) helping constituents navigate the federal bureaucracy
D) using campaign funds to ward off potential challengers
E) spending more time in Washington than in the district