Discourse refers to:

A) the ratio of interaction between two individuals during a conversation.
B) the full range of verbal and non-verbal behaviour that we employ when communicating with someone.
C) a communicative episode located in a situational and socio-historical context.
D) the balance of emblems, gestures, and other non-verbal cues within a situation.

Non-Verbal Behaviour

Communication without the use of spoken language, involving gestures, facial expressions, body language, and other physical cues.

Discourse

Entire communicative event or episode located in a situational and sociohistorical context.

Socio-Historical Context

Refers to the combined social and historical factors that influence and shape behaviors, events, and perceptions at a specific time.