Query about Question 10 from "(I'm Overwhelmed) Data Analysis Progress Quiz #7" [8714]

https://www.gregmat.com/quizzes/quiz/im-overwhelmed-data-analysis-progress-quiz-7 (Question 10)


Why is this not set up as 5 3 3 2 1 and instead “C” 3 3 2 1. Don’t you technically have 5 choices as to what you put first and then the ensuing modification only occurs if you choose C as the first letter?