What is a topic sentence? the sentence that always appears at the beginning of the paragraph
a sentence that includes the main idea of the paragraph
a sentence that repeats the main idea of the paragraph
a sentence that supports the main idea of the paragraph

Which statement best describes the use of the underlined word in the excerpts? in excerpt 1, it refers to personal growth, while in excerpt 2, it suggests the physical act of moving. in excerpt 1, it refers to personal growth, while in excerpt 2, it suggests scientific discoveries. in excerpt 1, it refers to societal advancement, while in excerpt 2, it suggests the gradual march of time. in excerpt 1, it refers to societal advancement, while in excerpt 2, it suggests steps toward a particular goal.