Question

Which of these lines from Walt Whitman's “I Hear America Singing” describes a unified America?

Answer 1

Answer:

I hear America singing, the varied carols I hear

Explanation:

In the other phrases, you have the impression of a limited context or localized singing. The first like, though, "I hear America singing", he treats all people as one; as "America."

The Americans are also signing "varied carols," which means that there is diversity, but all under a single name: "America."

Answer 2

The 1,3,and 5  are the lines that describes a unified America.