Mars inc., an automaker, hires a popular celebrity, emma hunt, as the spokesperson for its "keep the world green" campaign, an initiative for preserving trees. the viewers of the commercial perceive emma as being sincerely interested in citizen initiatives to preserve trees. emma as a message source is said to have:

Mars inc., an automaker, hires a popular celebrity, Emma hunt, as the spokesperson for its "keep the world green" campaign, an initiative for preserving trees. The viewers of the commercial perceive Emma as being sincerely interested in citizen initiatives to preserve trees. Emma as a message source is said to have perceived concern. Those watching the campaign have a concern about preserving the trees and the commercials remind them of whats to come if they stop preserving. This concern happens in many organization groups and saving the trees is an example of those we see concern in some areas will perceive it and feel the harm by watching the commercials. 

Ibelieve the answer is ethos which is an appeal to ethics

Answerappear in the code of federal regulations(cfr); ; ; broken down into parts;