I belive the answer is B.
The delivery technique Marcus is using while delivering a speech verbatim from a teleprompter is manuscript delivery.
So the text he is reading is called a manuscript, and he is delivering it in front of cameras or people. Verbatim means word for word - so he is reading everything that is written in the text. This is a common method of reading text during news on TV, for example.
It's B. The other answers have the pronouns in the Nominative case.
Pickering is the person that treats a flower girl like a duchess.
Whereas Higgins treats a duchess like a flower girl.