Blank is also called public communication or presentational communication a. small group communication b. interpersonal communication c. computer-mediated communication d. public speaking (for professional communications)

D.Public speaking

Explanation:

Also known as oratory or oration, Public speaking is the public communication that involves a person adressing several number of individuals, or large groups, and its the study of how to do it properly and communicate efficiently the message that the speaker wants to deliver, and influence the audience into beliving and agreeing with him.

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