Which diagram best explains a cause and effect relationship that has shaped u. s politics?

The diagram B best explains what shaped the politics because the restrictions have contributed to the persistence of the two-party system.

The use of Public funding for political campaign is quite limited, so the political candidates sought private financing for their political campaign.

The need for Campaign finances are paramount for have a real chances of getting into positions in the voting.

The political party helps the candidate with the funds because they are very strong and this made them the Democrats and Republicans the majority party in United States.

Therefore, the option B is correct.

Learn more about this here

link

The correct answer is B, since that diagram best explains a cause and effect relationship that has shaped U.S. politics. In fact, restrictions on who can receive public campaign funds have contributed to the persistence of the two-party system.

Public funding of political campaigns in the United States is quite limited, so candidates end up going to private financing. This, in turn, only finances those who have real chances of getting the positions in the voting, which ends up closing the question between Democrats and Republicans, strengthening the two-party system.