The phase of the presidential election process in which the political parties select candidates to run against other party candidates is called the

The phase of the presidential election process in which the political parties select candidates to run against other party candidates is called the nominating process. In this phase, different parties are to choose a candidate to represent their party and to run against other representatives. In the elections, there are two types of this process  namely primaries and caucuses.

Your answer should be choice b!