Which sentences in this passage introduces a new topic that might begin a new paragraph

Write an essay on your aim in life to become engineer

To meet the needs of commuters in the industrial age, city planners implemented the use of phonographs. provided more horses and carriages. borrowed technology from railroads. constructed new telephone lines.

Which sentence features a correctly identified compound pronoun in a prepositional phrase? a)she and i will be at the park on tuesday, waiting for mariah and them. b)the gift grandmother brought was for me and him. c)everyone is so sure that he'll be late after traveling with peter and maria. d)after they visit the grand canyon, tianna and mom are going to a spa.