I think it's D. Adalya and Declan
Probably the Republican Party. Ever since the party switch, the republicans have advocated for a better financial stance for the US.
Hope this helps!
These contrasting metaphors were used by Fitzgerald to convey the message that tolerance has a limit and that morality is always at stake despite having a strong foundation. The end justifies the means most especially when there is a lot to gain. Ethics can be powerful as described by a "hard rock" or weak as referred by "wet marshes".