How does this excerpt relate to the plot of the The Inheritors?

How does this excerpt relate to the plot of the The Inheritors?
A.It creates a shift in the mood, which was initially lighthearted, to one that is somber and tense.
B.It characterizes Emil, who is the first to mention the act, as one who exaggerates and worries unnecessarily.
C.It establishes the setting by referring to acts of espionage that were only committed during certain periods in history.
D.It strengthens the conflict by revealing the severity of the punishments that one convicted of spying will face.