Aword that names a group of things is called

Which of the following statements from "letter from birmingham jail" does not specifically dr. king to establish credibility with the white clergymen? question 6 options: just as the apostle paul left his village of tarsus and carried the gospel of jesus christ to the far corners of the greco roman world, so am i compelled to carry the gospel of freedom beyond my own town. my dear fellow clergymen: while confined here in the birmingham city jail, i came across your recent statement calling my present activities "unwise and untimely." i have the honor of serving as president of the southern christian leadership conference, an organization operating in every southern state, with headquarters in atlanta, georgia.

Make sure the topic of your persuasive essay is not a.something someone else is writing about b.a fact c.something you have written about before

What is the central idea in this advice from branch rickey to jackie robinson?