Answer :
Final answer:
Public communication involves a sender conveying information to an audience, while group communication includes multiple individuals working together towards a common goal.
Explanation:
Public communication is a sender-focused form of communication where one person conveys information to an audience. In contrast, group communication involves three or more people communicating to achieve a shared goal. The scenario described, involving the public works director, the mayor, and two community members, is an example of group communication as they collaborate to address the impact of recent flooding on community parks.
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