What end mark should be added to the bold word to make it an exclamation?

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.

(1) fire extended humans’ geographical boundaries by allowing them to travel into regions that were previously too cold to explore. (2) it also kept predators away, allowing early humans to sleep securely. (3) fire, in fact, has been a significant factor in human development and progress in many ways. (4) other obvious benefits of fire are its uses in cooking and in hunting. (5) probably even more important, however, is that learning to control fire allowed people to change the very rhythm of their lives. (6) before fire, the human daily cycle coincided with the rising and setting of the sun. (7) with fire, though, humans gained time to think and talk about the day’s events and to prepare strategies for coping with tomorrow. the sentence that expresses the main idea is: (type the number of the sentence. then click “go.”)

12 3 4 5 in general, modifiers should be placed close to the words they modify. true false