What type of model has replaced the communication model as the best theoretical underpinning of public relations?

It has been suggested that fear contagion (the spread of fear throughout a crowd) is largely dependent on response to the ____ of the individual

a. gestures b. eye contact c. facial expression d. posture

Communicating using social media encourages __________.

A. the use of traditional media outlets B. the creation of a public profile C. complete anonymity D. complete personal disclosure