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.
The answer is self-monitoring. Hope this helps! :)
I believe it is D. Just from context
I believe the best answer for this question is "entropy." Entropy is a scientific term referring to thermodynamics. It measures both the order and the disorder of a system. Order, or disorder, are both defined by how close the system is to equilibrium. Hope this helps. Also, keep in mind to ask questions in the proper category - this would be most suited to science, rather than English. Thanks.