What effect does the style of this long sentence achieve?

However, the idea of real-life people living in what would become the united states for thousands of years before columbus ever left spain never dawned on me. what would be the best way to revise this sentence for greater clarity? a) however, the fact that columbus left spain thousands of years after people settled what would become the united states never dawned on me. b) it never dawned on me, however, the idea of real-life people living in what would become the united states for thousands of years before columbus ever left spain. c) however, the fact that people were already living in what would become the united states for thousands of years before columbus ever left spain never dawned on me. d) however, the idea never dawned on me that long before columbus ever left spain, real-life people lived for thousands of years in what would become the united states.

Your school is considering adopting a policy that requires all students to complete 100 hours of community service during there high school careers in order to graduate. the district asked for student input at the next school board meeting as to whether or not they should adopt this policy. research the topic, decide whether you are in favor of or against the new policy, and write a five-paragraph persuasive speech that you will deliver to the school board members and your principle need answer for my

Has anyone taken the voices of modernism (1920s to 1940s) unit test? ? i really need read the following sentence. the cars passing by are filled with commuters. identify the present participle in the sentence. a. by b. are c. passing d. filled