FOG The fog come son little cat feet
It sits looking on silent haunches
and then moves on .
-Carl Sandburg, "Fog"

How does a metaphor most clearly contribute to the mood of this poem?
A. The metaphor comparing fog to a cat creates a playful mood because cats like to pounce and play.
B. The metaphor comparing fog to a cat creates a peaceful mood because a cat's movements are quiet and graceful.
C. The metaphor comparing the cat to a city creates a mysterious mood because cities can seem secretive a night.
D. The metaphor comparing the cat to a city creates an energetic mood because cities are full of activity and noise.