Question

The fog comes
on little cat feet.

It sits looking
over harbor and city
on silent haunches
and then moves on.

What is the main difference between Sandburg’s A. “Fog” and Frost’s "Mending Wall"?
B. “Fog” uses metaphor, while “Mending Wall” does not.
“Fog” uses everyday language, while “Mending Wall” does not.
C. “Mending Wall” is in free verse, while “Fog” is not.
D. “Mending Wall” is in a modern format, while “Fog” is not.