I haven't. Sounds interesting though!
Answer C: fear.
The passage gives the idea that John feels fear in anticipation to a bad approach with Carolyn based on his previous experience with her.
I have never read what you are asking, but just by looking at it, I would assume that he is stereotyping Dutch people, because he is calling Black Dog an insult, which is "son of a dutchman".
Answer:
They were sought after by others.
Explanation:
Duchamp and Hoch share a common similarity in the sense that other people always seek after them.
They were always sought after by others.
C. repetitive
Hope i helped!