Read the passage:

You fancy me mad. Madmen know nothing. But you should have seen me. You should have seen how wisely I proceeded--with what caution--with what foresight--with what dissemination I went to work!
Which best identifies the mood established by the underlined phrase?

The underlined phrase is (But you should have seen me.)

A. Frustration
B. Creppy
C. Amusement
D. Confusion