Answer:
The repetition of singing throughout the poem paints a picture of many Americans working and singing at the same time. The poem also repeats the idea that each person's song is his own, so the image is one of many different songs being sung at once. Their songs and jobs are all different, but they seem happy and joined together in song.
Explanation: i did the test and got a 100%
Rhetoric the art of effective or persuasive speaking or writing, especially the use of figures of speech and other compositional techniques.
So it would be A
B. Weaknesses is the correct answer
Before adding the suffix "less", flaw means a fault or imperfection. When you add the suffix, you get flawless, which means "without any imperfections", or "perfect".