Public communication is best defined as: Select one: a. the process of using messages to generate meanings in a mediated system, between a source and a large number of unseen receivers. b. the process of using messages to generate meaning in a small group of people. c. the process of using messages to generate meanings in a situation in which a speaker transmits a message to a number of receivers. d. two-person communication e. the process of using messages to generate meaning between at least two people in a situation that allows mutual opportunities for both speaking and listening.