Please give me the correct answer. Only answer if you're very good at English. Please don't put a link to a website. Choose the MAIN text structure for this paragraph.

Compare and Contrast

Cause and Effect

Main Idea and Supporting Details

Problem and Solution​

"the tune the he might never know again." this part build anticipation. dexter got extremely happy by the piano tune. he could see what he was living at that moment in his life throught this feeling. the reader might want to learn more about his happy life. in fact, he called it a state of   'ecstasy'. the fact that he had got in a mood of intense appreciation and that everything about him was extremely bright and glamorous might lead the reader to feel that this state of happiness may not last long. the two parts from the excerpt that exemplify the anticipation are: " the sound of the "; " it was a know again."