Why did Chris decide to go to San Diego?

Read the excerpt from pat mora’s essay "the leader in the mirror." i hoped that most of the students were going to enroll in college. the confetti would be for their private celebrations, those solitary moments when they had passed a test that worried them, finished a difficult paper at 2 a.m., found a summer internship. sometimes, even when no one else is around, it’s important to celebrate when we have struggled and succeeded—to sprinkle a little confetti on our own heads. what is the author’s purpose in using confetti as a symbol? the confetti represents celebration. the author uses confetti to encourage her audience to celebrate success. the confetti represents celebration. the author uses confetti to teach the students how to plan a celebration party. the confetti is a symbol of college graduation. the author uses the symbol to reward college graduates. the confetti is a symbol of summer internships. the author uses the symbol to encourage signing up for summer internships.

Which is not among the style choices a writer would use, if he or she is trying to establish a formal writing style/

Which verb or verb phrase signals an inappropriate shift in mood. a) will you let b) should first change c) must attend d) will be served