Question 23 refers to the following poem.
WHY IS THE BOAT WHISTLING?
Lost
Desolate and lone
All night long on the lake
Where fog trails and mist creeps,
The whistle of a boat
Calls and cries unendingly,
Like some lost child
In tears and trouble
Hunting the harbor's breast
And the harbor's eyes.
Carl Sandburg, "Lost," Chicago Poems, 1916
23. To what does the poem compare the boat's whistle?
A. a lonely person crying
B. a mother searching for her child
C. a foghorn
D. a child's cries for its mother​