What are the features of Bernard Shaw's characterization?

What are the features of Bernard Shaw's characterization?
【正确答案】：A.He makes the trick of showing up character at the expense of another
B. He would take an unconventional character a person with the gift of insight a freedom, and impinge it upon a group of conventional social animals.
C. Bemard Shaw's characters are the representatives of ideas, points of view, that shift and alter during the play.