Which of these statements fully describes a topic sentence?

1. a debatable claim that needs to be supported with evidence
2. a thesis statement supported by each paragraph of an essay
3. a claim within a paragraph that supports an essay’s thesis
4. a definitive sentence that plots the outline of a paragraph

Read the excerpt below and answer the question. nice town, y'know what i mean? nobody very remarkable ever come out of it, s'far as we know. the earliest tombstones in the cemetery up there on the mountain say 1670-1680-they're grovers and cartwrights and gibbses and herseys-same names as are around here now. in at least one hundred words, discuss the significance of the stage manager's narration in our town. analyze the text in terms of its tone, word choice, and meaning. what purpose does this narration serve in the play?