How does the following line from "I Hear America Singing" contribute to the overall theme of the poem?

Question

Each singing what belongs to him or her and to none else
(1 point)
O Each song and task fully expresses an individual.
O Although everyone is different, everyone sings the same song.
O Each person has written a song to sing while working.
O All of the writers have their own equipment.

Answer 1

O Each singing what belongs to him or her and to none else contributes to the theme that each individual has their own unique voice and contribution to society.