What Is the Primary Role of a Party in the Electorate

What is the primary role of a party in the electorate?

A) work to get citizens to identify the party's values with their own beliefs and interests
B) design governmental institutions in order to maximize efficiency in the development of public policy
C) select candidates to seek public office and to assist candidates in organizing election campaigns
D) develop coherent policy platforms to support the party's electoral efforts
E) organize the efforts of elected officials to achieve policy goals