Which of the following passages from George Bernard Shaw's Pygmalion best illustrates the theme of metamorphosis?
A. "What is life but a series of inspired follies?"
B. "I shall make a duchess of this draggletailed guttersnipe."
C. "I want to know on what terms the girl is to be here. Is she to have any wages?"
D. "Oh, you've no feeling heart in you: you don't care for nothing but yourself."