Help please I need a plot triangle from the Book "A Mighty Long Way" By Carlotta Walls LaNier.
thanks​

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.

Which sentence is written correctly? chicken a lean protein, can by prepared, in manyh chicken a lean protein can be prepared, in many he chicken, a lean protein, can be prepared in many he chicken, a lean, protein can be prepared in-sany he

What is the best revision of this statement from the body of a cover letter?