Conversational competence involves more than just grammatical accuracy; it requires the ability to manage turns, use "back-channeling," and adhere to the "Cooperative Principle." Analyze the following statements about conversation skills:

I."Back-channeling" involves providing vocal or non-verbal cues, such as "uh-huh" or nodding, to show that one is listening without interrupting the speaker.

II."Turn-taking" is the conversational mechanism where one person speaks at a time in an orderly fashion, avoiding long silences or frequent overlaps.

III.The "Maxim of Quality" in Grice's Cooperative Principle states that speakers should be as brief as possible and avoid any complex vocabulary in casual talk.

Which statements are correct: