Which of the following statements is true about implied main ideas?

implied main ideas are always located in the first sentence of a paragraph.
implied main ideas always answer the question who.
implied main ideas are not directly stated.
implied main ideas do not need to have any supporting details.

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.