What is the primary sense the excerpt from "Chicago" by Carl Sandburg engages in the reader?

The answer is hearing

In the question they mentioned Come and show me another city with lifted head singing so proud to be alive and coarse and strong and cunning. Here is a tall bold slugger set vivid against the little soft cities. In the first line they mentioned singing, which would appeal to the sense of sound. So the answer should be 'hearing.'