Which conjunction is correctly paired with its function?

The choice regarding "either-or" is accurately matched with its function to indicate alternatives. This conjunction is specifically used to present two distinct options or possibilities, thereby allowing the reader or listener to make a choice between them. For instance, when using "either-or," sentences could outline alternatives such as "You can either stay home or join us for the trip," clearly presenting two different paths or actions.

In contrast, the other conjunctions listed do not align correctly with their respective functions. "And" is used for addition rather than contrast, "but" appropriately expresses contrast instead of addition, and "not only-but also" is utilized to connect related ideas rather than to condition. Understanding the specific functions of conjunctions helps in constructing clearer and more effective sentences.