Involves a direct verbal or nonverbal interaction between two or more active participants. decentralized interpersonal nonverbal lateral centralized

Interpersonal Communication.

Explanation:

Interpersonal communication Involves a direct verbal or non verbal interaction between two or more active participants. It is the face-to-face meeting of people, with the need to be physically present in each other's view. It is also the means to see how the conversation is had, with the person able to see the expression of the other person and the tone and gestures, body language all playing a pivotal role in the conversation.

i would have to say "a" or "d".

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