with calm exasperation
The narrator is not happy that he has been tricked into Simon Wheeler's story-telling antics. He is annoyed that he is stuck listening to these tales about Smiley's gambling. While he listens well, he is not amused, patient, or attentive.
I said that It is D: takes
Answer:
He tells the reader in Chapter 1, he is tolerant, open-minded, quiet, and a good listener, and, as a result, others tend to talk to him and tell him their secrets. Gatsby, in particular, comes to trust him and treat him as a confidant. Nick generally assumes a secondary role throughout the novel, preferring to describe and comment on events rather than dominate the action.
Explanation: