When selecting supporting materials, it is important to consider the credibility of the source and the source's point of view

Some researchers have argued that the general attitudinal component in RAT be replaced by two different types of attitudes. These two types are:

a. moral and subjective b. instrumental and objective c. experiential and moral d. experiential and instrumental

Explain the boomerang effect and how knowledge of that effect could help you plan a more effective persuasive speech? 

What will be an ideal response?