The Atbash cipher also known as Atbash code is a monoalphabetic substitution concept whereby the first letter of an alphabet system is replaced by the last letter. Take for example, in the English alphabet system, letter A would be written as "Z", letter B as "Y" while letter C becomes "X". The purpose of using Atbash is to facilitate secrecy in words or hide real words from people who don't know about Atbash. For example, not everyone knows that "ilhvh" is an Atbash code that means "roses".
The main reason why Gene changes his mind about enlisting in the military after he tells Brinker he will is because "<span>D)Gene doesn't want to leave Devon because Finny has returned" since they are quite attached. </span>
I would go with C. Because the narrator is talking. The narrator want to have a lesson badly on water-reading. But Mr. Bixby thinks the narrator is far to advanced for it and will not teach her it. So Mr. Bixby is being stubborn and will not give the lesson.