A. what interests you is the way in which you have created the illusion
B. they are angry with you, for it was
C. the public is easily disillusioned and then
D. the illusion they loved; they do not understand that
Genre- Illusion
C is the focus of the sentence and, therefore, should come first. There is only one sentence with C at the beginning. Therefore, (c) is the answer.
CAT 1994