Which dimension of voice contributes to a speech by helping the speaker mark transitions and

Explain the differences between interpersonal and impersonal communication

What will be an ideal response?

Frank was determined not to let Dorothy know he was upset, so he avoided looking at her and only spoke in one-word responses, but Dorothy knew immediately something was wrong. This demonstrates the _________ of the communication process

A) inevitability B) irreversibility C) unrepeatability D) competency