What is a dialogue tag?

A dialogue tag is a phrase that precedes, breaks up, or follows a bit of written dialogue and establishes who the speaker is, how they are delivering the dialogue, and whether or not a new speaker is talking.

Dialogue tags are those short little phrases in dialogue that identify the speaker.

the answer is both an appeal to ethos and logos (if that's what your question options were)

yes, post it and i can try to you out.