The Fact That Democratic Party Leaders Have Become More Liberal

The fact that Democratic Party leaders have become more liberal and Republican Party leaders more conservative is important because

A) Republicans have become less hawkish over time.
B) Democrats have become more hawkish over time.
C) partisans in the public tend to rely on party leaders for cues on the appropriate positions to take on major political issues.
D) partisans in the public no longer rely on party leaders for cues on the appropriate positions to take on major political issues.