Final answer:
The average American most likely identifies with the party-in-the-electorate, which includes voters who show allegiance to a political party and consistently support its candidates. The correct answer is option: b) party-in-the-electorate.
Step-by-step explanation:
The average American likely belongs to the party-in-the-electorate component of a political party. This group comprises members of the voting public who consider themselves part of a political party and/or consistently prefer the candidates of one party over the other.
These party identifiers often exhibit loyalty to their chosen party and their behavior is characterized by their propensity to vote for their party's candidates and possibly attend party events, as well as provide financial support during elections.