I believe the answer is C
Denotation is my best answer, sorry if its wrong.
Because the co-workers Rita kept her eyes on her work and never said much. Laura concluded that Rita wasn't very smart. When a new procedure was introduced on their floor, Laura made several errors. Rita showed her a simple way to remember each step.
My answer is why not? There is so much of earth that we have not explored, how can we know for sure what there is or isn't?
George Washington was the first President of the United States of America.
