The delicious singing of the mother – or of the young wife at work – or of the girl sewing or washing – Each singing what belongs to her, and to none else. . . . Singing, with open mouths, their strong melodious songs.

—“I Hear America Singing,”
Walt Whitman

What type of image does Whitman create by having the workers sing repeatedly?

an image of happy workers
an image of bored workers
an image of tired workers
an image of angry workers