After college, Katherine became a teacher. She taught school until she got married and had children. When her husband became very sick, she started teaching again to support her family. When Katherine was 34, she heard that NACA (later called NASA) was hiring African American women to solve math problems.
Answer:
the passengers and Twain perceive the river in very different ways.
Explanation:
Right after it, Twain continues: <em>"Now when I had mastered the language of this water and had come to know every trifling feature that bordered the great river as familiarly as I knew the letters of the alphabet, I had made a valuable acquisition."</em>
He sees the river in a different way and much is to be told from what the river shows, it seems, but passengers are not able to see what he sees because they do not share the same knowledge.
The answer should be B) It reveals the characters' actions in response to the climax.