<h3>To help one in examining the credibility of the author's work.</h3>
Explanation:
It is important to examine an author's or publisher's institutional affiliations or previous works so that one can examine the credibility of the author's or publisher's work.
When you read a work or article by an author, you ought to understand where his/her reliability is coming from. In this way you can use their work as a credible source for your information and knowledge if they have good institutional affiliations or credible previous works.
In other words, is a connector to explain about the ideas previously expressed in a clearer way, or to repeat the same idea using a different set of words. In this case it is possible to see that Gracie does not express the exact same idea in the two connected statements.
I believe the correct answer is B) Sam and Hally enjoy the intellectual exchange.
I came to this conclusion because Fugard uses this to show how inconsiderate Hally is of Sam's perspective, and despite seeing himself as politically progressive, he still harbors obvious racists views.
