Which collection features the poem "Chicago"?

The poem "Chicago," written by Carl Sandburg, is featured in the collection titled "Chicago Poems." This collection, published in 1916, is significant for its vivid portrayal of the city of Chicago and its dynamic urban life. Sandburg's style within this poem captures the grit, vitality, and spirit of the city, reflecting themes of pride and resilience.

The other collections listed do not include "Chicago." "Stars and Stripes" is not linked to Sandburg's work, "The Weary Blues" is a collection by Langston Hughes that predominantly features poems related to the Harlem Renaissance, and "Leaves of Grass" is a famous work by Walt Whitman that focuses on themes of nature, democracy, and the human spirit, without any connection to Sandburg's portrayal of Chicago. Thus, "Chicago Poems" is the correct choice as it directly contains the poem "Chicago."