Believability of a speaker is highly dependent on supporting materials that are: a. clear. b. entertaining. c. credible. d. impactful.

The correct answer is C. Credible

Explanation:

In speeches, debates and similar communicational situations, it is common one or more speakers present their position about a certain issue or topic they believe it is the most appropriate and valid. However, this position can be considered as valid only if the speaker provides supporting materials and evidence and if this information is credible which means it can be trusted and believed usually because the information presented is updated, has been revised by others, represents facts and not opinions, was written by an expert in the field, among others. Therefore, the believability of the speaker is highly dependent on supporting materials that are credible.

there are conflicting perceptions. what cannot be denied is that despite a long history of discrimination, they finally chose to bow out in grace and handed over power to the majority. it was a painful experience for them to part with their prerogatives and some chose to leave the country. however, they did decide to bite the bullet and go through the process with minimum obstructions.

presently, whites are still a force to reckon with. they are well educated, have technical and business expertise, they understand imperatives of good governance and are responsible for keeping south africa connected with developed countries. despite a bitter history, they are useful team members of the south african team.

i would say d tho   ctfvygbuhinjmlk