Respuesta :
Answer:
B. topic, audience, and purpose
Explanation:
I got it correct on edge thanks to the person above me :)
The three factors that determine the formality of a discussion are;
- topic
- audience
- purpose
What is formality?
A formality serves as an established procedure related to a specific behaviors and utterances.
It is needed to maintain a good balance when making a discussion and it involves the topic of discussion and the audience.
learn more about formality at;
https://brainly.com/question/25607827