Because american government follows a pluralistic framework, political parties shift ideologies frequently in order to create competition. divide voters on key issues in order to deter compromises. join alliances with third-party members to garner more power. create coalitions based on broad principles in order to win elections. increase party identification in order to raise money and motivate party members.

"Create coalitions based on broad principles in order to win elections" is the most correct statement out of the five listed.

In the US, the Democrats and Republicans dominate American politics. If you were to look at how many individuals in the US Senate and House of Representatives, only a handful of them would be from political parties that were not the Democratic or Republican party. This is because these parties have a long history in the US. Along with this, their ideologies/beliefs have been fairly consistent over the last decade. These general beliefs help in categorizing these individuals and allow citizens to have a simple idea as to what these people believe in. 

Nm-us history and geography