The current party system is marked by

a. declining levels of polarization as moderates make up a large proportion of each of the parties.
b. heavy reliance on television advertising funded by soft money to mobilize voters.
c. the widening ideological divide between the parties in Congress.
d. much more fluid electoral coalitions that change depending on what the most salient political issues are.

c. the widening ideological divide between the parties in Congress.