A piano teacher is loved by all his students. One day at a concert featuring Chopin's music, he is reminded of how he missed his chance at greatness by not working hard enough, so he resolves to enforce greater discipline on his students, even if it makes them hate him. By the end of the year, all of his students decide to give up on music.
How does the story's structure most clearly affect the author's message?

A.
It uses cause and effect to illustrate the danger of forcing your dreams onto someone else.

B.
It uses chronological order to indicate the steps the teacher took to alienate his students.

C.
It uses problem and solution to demonstrate that not all problems have easy solutions.

D.
It uses compare and contrast to show how the students reacted before and after the teacher's resolution.