According to English Language Teaching, Hemingway's language style and writing techniques were heavily influenced by his experience as journalist: simple, natural, it has clarity and fresh. Thanks to journalism, he was able to use specific words, so that reader can catch the whole sense.
"A.Clear Skies" is the correct answer. This phrase is often used to imply that there should be no issue going forward with a certain task or event. It comes from the lingo of pilots and sailors.
