Why Do Voters Depend More on Party Identification in State

Why do voters depend more on party identification in state and local elections?

A) Voters tend to pay less attention to campaigns for state and local elections.
B) Candidates running in state and local elections adhere more to a party platform.
C) Voters are required to vote a straight party ticket in state and local elections.
D) Ballots in state and local elections list only a candidate's name, not their party.